View MSC220_546163.PDF datasheet online --- IC-ON-LINE

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Obsolescence Notice
This product is obsolete. This information is available for your convenience only. For more information on Zarlink's obsolete products and replacement product lists, please visit
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PRELIMINARY
INFORMATION
Distinctive Characteristics
t Highly integrated central switch controller t State of the art 0.35 micron 3.3 Volt CMOS process t 256-PIN PQFP package t Operating frequency -40 -50 -66 40 MHz maximum 50 MHz maximum 66 MHz maximum
SC220 - XpressFlow Engine
XpressFlow 2020 Ethernet Routing Switch Chipset
CAM (Optional) ADDRESS MAPPING TABLE 16
SC220
t 16-bit external CAM interface Supports 1/2 to 16k MAC addresses k
CONTROL BUFFER MEMORY
XpressFlow
32
t 32-bit Control Buffer Memory interface Supports 128k to 1M bytes Utilize high performance 32-bit Synchronous Burst SRAM
ENGINE
t Hardware assisted Buffer and Queue Management to minimize CPU overhead t 32-bit Management Bus I/O interface Allows host to access CAM and Control Buffer Memory Supports Big and Little Endian CPUs Direct interface with various different standard microprocessors including 386, 486 families and Motorola MPC series embedded processors Switching bandwidth
32 XpressFlow BUS
32
XpressFlow BUS
t 32-bit XpressFlow Bus Interface -1.28 Gbps @ 40 MHz system clock -1.60 Gbps @ 50 MHz system clock -2.10 Gbps @ 66.67 MHz system clock Supports up to 8 Multi-port Network Access Controllers XpressFlow Bus access arbitration XpressFlow Bus data transfer load regulation Addresses resolved by SC220 Supports either CAM based or SRAM based Switching data base
SC220 - XpressFlow Engine
General Description
The XpressFlow Engine contains the switching data base interface and buffer management logic in order to do the switching decision making for unicast, multicast, and broadcast frames. Hardware assisted queue manager is incorporated to facilitate buffer management. It also provides a generic Management Bus interface to allow external processor to do initialization, learning, VLAN, and RMON support, etc. In addition, a XpressFlow Bus interface block is responsible for communicating with the Network Access Controllers through the XpressFlow message passing protocol.
t Full IP Switching t MAC Address Mapping Table
Related Components:
t EA218E - 8-port 10Mbps Ethernet Access Controller t EA218 - 6-port 10 + 2-port 10/100 Ethernet Access Controller t EA234 - 4-port 10/100 Fast Ethernet
(c) 1998 Vertex Networks, Inc. 1999
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Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset
Characteristics Continue
t Built-in address to port resolution Embedded 32-bit HISCTM (High density Instruction Set Core) Processor Optimized architecture for switch applications Loadable firmware for easy upgrade
CAM
ADDRESS MAPPING TABLE
SC220 XpressFlow Engine
SC220 XpressFlow Engine
HISC Core
32 32
t Supports unicast, multicast, and broadcast frames t Address Filtering Destination & Source MAC address matching & filtering Up to 62 groups Level 1 and 2 mapping VLAN ID tagging & stripping Auto padding if necessary after stripping
16
CAM Interface
16
16
SRAM
CONTROL BUFFER MEMORY
HISC I/O Registers
Mngmt Bus Interface
32
32
32
Control Buffer Memory Interface
32
32
t VLAN classification & verification
32 32 32 32
XpressFlow Bus Interafce
32
Automatic Buffer Manager
XpressFlow BUS
t Supports Store-&-Forward Frame Forwarding Mode t Collects statistics for RMON
Block Diagram - SC220 XpressFlow Engine Typical Application: A 16-port Ethernet Switch with 4-Fast Ethernet
Address Mapping Table
RS232 Local Control Console
Buffer RAM
SC220 XpressFlow Engine
Flash ROM
Switch Manager CPU
DRAM
Management Bus XpressFlow Bus
Buffer RAM
EA208E 8-Port Ethernet Access Controller
Buffer RAM
EA208E 8-Port Ethernet Access Controller
Buffer RAM
EA234 4-Port Ethernet Access Controller
8 Ethernet ports
8 Ethernet ports
Four 100M Fast Ethernet ports
System Block Diagram -16-Port Ethernet Switch with 4 Fast Ethernet Up-Links
(c) 1998 Vertex Networks, Inc. 1999 2 Rev. 4.5 - February
MANAGEMENT-BUS
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XpressFlow-2020 Series - Ethernet Switch Chipset
SC220 XpressFlow Engine
1. PIN ASSIGNMENT
1.1 Logic Symbol
SC220
L_A[18:2] L_BWE[3:0]# L_WE[3:0]# L_OE[3:0]# L_ADSC# L_CLK P_D[31:0] P_A[11:1] P_CS# P_ADS# P_RWC P_RDY# P_BS16# P_INT P_RSTIN# P_RSTOUT P_CLK
4 4 4
Control Buffer Memory Interface
L_D[31:0]
Test Pin
T_MODE C_D[15:0] C_CE# C_WE# C_CM# C_EC# C_MF# C_FF# S_D[31:0] S_MSGEN# S_EOF# S_IRDY S_TABT# S_OVLD#
8 8
Management Bus Interface
XpressFlow Bus Interface
CAM Interface
S_HPREQ# S_REQ[8:1]# S_GNT[8:1]# S_CLK
Note:
The SC220 is pin compatible to the SC201 with only one exception: The RSTOUT pin of SC201 is defined as a synchronous RESET output pin which follows the RSTIN input and re-synchronous with P_CLK for meeting the 80386 timing requirement. The RSTOUT pin for SC220 has a totally different function. It is no longer related with the RSTIN input. The RSTOUT is a watchdog output from SC220 to keep track of the active state of the host processor. Host processor needs to access the Keep Alive register periodically to prevent the setting of the RSTOUT output. The RSTOUT output can be use as Reset input to the host processor.
(c) 1998 Vertex Networks, Inc. 1999
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Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset 1.2 Pin Assignment (Preliminary)
Note: # Input I-ST Output Out-OD I/O-TS I/O-OD 5VT Active low signal Input signal Input signal with Schmitt-Trigger Output signal (Tri-State driver) Output signal with Open-Drain driver Input & Output signal with Tri-State driver Input & Output signal with Open-Drain driver Input with 5V Tolerance Symbol Type
SC220 XpressFlow Engine
Pin No(s).
Name & Functions
XpressFlow Bus Interface 122,121,119,118, 116 S_D[31:27] / P_C[0:4] 114,113,111,109,108, 106,105,104,103,101, 100,98,97,96,95,93,92, 90,89,88,87,85,84,82, 80,79,77 71 69 72 70 123 140,138,135,133,131, 129,126,124 141,139,137,134,132, 130,128,125 73 75 S_D[26:0]
CMOS I/O-TS XpressFlow Bus - Data Bit [31:28] or Processor Interface Configuration Bit [0:4] CMOS I/O-TS XpressFlow Bus - Data Bit [27:0]
S_MSGEN# S_EOF# S_IRDY S_TABT# S_HPREQ# S_REQ[8:1]# S_GNT[8:1]# S_OVLD# S_CLK
CMOS I/O-TS CMOS I/O-TS CMOS I/O-TS CMOS I/O-OD CMOS I/O-OD CMOS Input **
XpressFlow Bus - Message Envelope XpressFlow Bus - End of Frame XpressFlow Bus - Initiator Ready XpressFlow Bus - Target Abort XpressFlow Bus - High Priority Request XpressFlow Bus - Bus Request [8:1]
CMOS Output XpressFlow Bus - Bus Grant [8:1] CMOS Output XpressFlow Bus - Bus Overload CMOS Input XpressFlow Bus - Clock
(c) 1998 Vertex Networks, Inc. 1999
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Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset
Pin No(s). Symbol Type TTL I/O-TS (5VT)
SC220 XpressFlow Engine
Name & Functions Management Bus - Data Bit [31:0]
XpressFlow Bus Interface 185,184,183,182,180, P_D[31:0] 179,177,176,175,174, 172,171,169,168,167, 166,164,163,160,159, 157,156,154,153,151, 150,149,148,146,145, 143,142 211,210,208,207,205, P_A[11:1] 204,203,202,201,199, 198 196 P_ADS# 191 183 184 185 189 190 192 187 P_RWC P_RDY# P_BS16# P_CS# P_RSTIN# P_RSTOUT P_INT P_CLK
TTL Input (5VT) TTL Input (5VT) TTL Input (5VT) CMOS OutOD CMOS OutOD TTL Input (5VT) TTL In-ST (5VT) CMOS Output CMOS Output TTL Input (5VT) TTL I/O-TS
Management Bus - Address Bit [11:1]
Management Bus - Address Strobe Management Bus - Read/Write Control Management Bus - Data Ready Management Bus - 16 bit Data Bus Management Bus - Chip Select System RESET Input CPU RESET Output Management Bus - Interrupt Request CPU Clock
Control Buffer Memory Interface 60,59,58,57,56,54,53,51, L_D[31:0] 50,49,48,47,46,45,43,42, 40,39,38,37,36,34,33,30, 29,27,26,25,24,23,22,21, 8,6,5,3,2,1,256,255,254, L_A[18:2] 253,251,250,248,247, 246,245,244 9 L_A[19] / L_OE[3]# 63, 11, 19 L_OE[2:0]# 242, 62, 10, 18 12,13,14,15 16 66
Local Memory Bus - Data Bit [31:0]
CMOS Output Local Memory Bus - Address Bit [17:2]
CMOS Output Local Memory Bus - Address Bit [19:18] or Memory Read Chip Select [3] CMOS Output Local Memory Bus- Read Chip Select [2:0] L_WE[3:0]#, CMOS Output Local Memory Bus - Write Chip Select [3:0] L_BWE[3:0]# CMOS Output Local Memory Bus - Byte Write Enable [3:0] L_ADSC# CMOS Output Local Memory Bus - Controller Address Status L_CLK CMOS Output Local Memory Bus - Synchronous Clock
(c) 1998 Vertex Networks, Inc. 1999
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Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset
Pin No(s). CAM Interface 214,215,217,218,219, 220,221,222,223,225, 226,228,229,220.221, 239 241 233 234 236 237 Symbol C_D[15:0] Type TTL I/O-TS (5VT) CMOS Output CMOS Output CMOS Output CMOS Output TTL Input (5VT) TTL Input (5VT)
SC220 XpressFlow Engine
Name & Functions CAM Interface - Data Bus bit [15:0]
C_WE# C_CE# C_EC# C_CM# C_FF# C_MF#
CAM Interface - Write Enable CAM Interface - Chip Enable CAM Interface - Enable Comparison CAM Interface - Data/Command Select CAM Interface - Full Flag CAM Interface - Match Flag
Test & Reserved Pins 65 TEST
62,63,64,67,242
n/c
CMOS I/O-TS Test Pin - Set Test Mode upon Reset, and provides test status output during test mode --Reserved Pins (5 pins) Input Input +3.3 Volt DC Supply for Core Logic (6 pins) +3.3 Volt DC Supply for I/O Pads (23 pins)
Power Pins 32,78,115,161,206,243 VDD (Core) 7,20,31,44,55,68,76,86, VDD 94,102,110,120,144, 152,162,170,178,186, 197,216,227,238,252 35,81,112,158,209,240 VSS (Core) 4,17,28,41,52,61,66,74, VSS 83,91,99,197,117,127, 136,147,155,165,173, 181,188,200,213,224, 235,249
Input Input
Ground for Core Logic (6 pins) Ground for I/O Pads (26 pins)
(c) 1998 Vertex Networks, Inc. 1999
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Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset
1.1 1.2
SC220 XpressFlow Engine
1.3
Connection Diagram - 256-PQFP Package (Top View)
L_A[12] L_A[11] L_A[10] L_A[9] VDD L_A[8] L_A[7] L_A[6] VSS L_A[5] L_A[4] L_A[3] L_A[2] VDD (Core) L_WE[3]# C_CE# VSS (Core) C_WE# VDD C_MF# C_FF# VSS C_CM# C_EC# C_D[0] C_D[1] C_D[2] C_D[3] C_D[4] VDD C_D[5] C_D[6] VSS C_D[7] C_D[8] C_D[9] C_D[10] C_D[11] C_D[12] C_D[13] VDD C_D[14] C_D[15] VSS
256 1
L_A[13] L_A[14] L_A[15] VSS L_A[16] L_A[17] VDD L_A[18] L_A[19] / L_OE[3]# L_WE[1]# L_OE[1]# L_BWE[3]# L_BWE[2]# L_BWE[1]# L_BWE[0]# L_ADSC# VSS L_WE[0]# L_OE[0]# VDD L_D[0] L_D[1] L_D[2] L_D[3] L_D[4] L_D[5] L_D[6] VSS L_D[7] L_D[8] VDD VDD (Core) L_D[9] L_D[10] VSS (Core) L_D[11] L_D[12] L_D[13] L_D[14] L_D[15] VSS L_D[16] L_D[17] VDD L_D[18] L_D[19] L_D[20] L_D[21] L_D[22] L_D[23] L_D[24] VSS L_D[25] L_D[26] VDD L_D[27] L_D[28] L_D[29] L_D[30] L_D[31] VSS L_WE[2]# L_OE[2]#
P_A[11] P_A[10] VSS (Core) P_A[9] P_A[8] VDD (Core) P_A[7] P_A[6] P_A[5] P_A[4] P_A[3] VSS P_A[2] P_A[1] VDD P_ADS# P_CS# P_BS16# P_RDY#
193 192
Pin 1 I.D.
CAM Interface Management Bus Interface XpressFlow Bus Interface
129 128
Test
64 65
P_INT P_RWC P_RSTOUT P_RSTIN# VSS P_CLK VDD P_D[31] P_D[30] P_D[29] P_D[28] VSS P_D[27] P_D[26] VDD P_D[24] P_D[25] P_D[23] P_D[22] VSS P_D[21] P_D[20] VDD P_D[19] P_D[18] P_D[17] P_D[16] VSS P_D[15] P_D[14] VDD VDD (Core) P_D[13] P_D[12] VSS (Core) P_D[11] P_D[10] VSS P_D[9] P_D[8] VDD P_D[7] P_D[6] P_D[5] P_D[4] VSS P_D[3] P_D[2] VDD P_D[1] P_D[0] S_GNT[8]# S_REQ[8]# S_GNT[7]# S_REQ[7]# S_GNT[6]# VSS S_REQ[6]# S_GNT[5]# S_REQ[5]# S_GNT[4]# S_REQ[4]# S_GNT[3]# S_REQ[3]#
(c) 1998 Vertex Networks, Inc. 1999
T_MODE VSS L_CLK VDD S_EOF# S_TABT# S_MSGEN# S_IRDY S_OVLD# VSS S_CLK VDD S_D[0] VDD (Core) S_D[1] S_D[2] VSS (Core) S_D[3] VSS S_D[4] S_D[5] VDD S_D[6] S_D[7] S_D[8] S_D[9] VSS S_D[10] S_D[11] VDD S_D[12] S_D[13] S_D[14] S_D[15] VSS S_D[16] S_D[17] VDD S_D[18] S_D[19] S_D[20] S_D[21] VSS S_D[22] S_D[23] VDD S_D[24] VSS (Core) S_D[25] S_D[26] VDD (Core) S_D[27] VSS S_D[28] / P_C[3] S_D[29] / P_C[2] VDD S_D[30] / P_C[1] S_D[31] / P_C[0] S_HPREQ# S_REQ[1]# S_GNT[1]# S_REQ[2]# VSS S_GNT[2]#
Control Buffer Memory Interface
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XpressFlow-2020 Series - Ethernet Switch Chipset 1.4
1 A B C
L_A [13] L_A [14] L_A [18] [1]# [2]# L_A [16] [3]# [3]#
SC220 XpressFlow Engine
Connection Diagram - 256-BGA Package (Top View)
2
L_A [12]
3
L_A [10] L_A [11] L_A [15] L_A [17] [1]#
4
5
6
7
8
9
10
11
C_D [3] C_D [4] C_D [5] C_D [8]
12
C_D [6] C_D [7] C_D [9] VDD
13
C_D [10] C_D [11] C_D [12] VSS
14
C_D [13] C_D [14] C_D [15] VDD
15
P_A [11] P_A [10] P_A [9] VDD (Core)
16
P_A [8] P_A [7] P_A [5] VSS
17
P_A [6] P_A [4]
18
P_A [3] P_ ADS#
19
20
L_A[5] / L_A[2] / P_C[3] P_C[0] L_A [8] L_A [9] VDD (Core) VSS L_A L_A[3] / C_ CE# [6] P_C[1] L_A L_A[4] / L_WE [7] P_C[2] [3] VSS VDD VSS
C_ C_ EC# C_D MF# [2] C_ CM# C_ WE# VDD C_ FF# VSS C_D [1] C_D [0] VSS
P_ P_ BS16# RDY# P_A [2] P_ INT
P_A P_ CS# P_ P_RST [1] RWC OUT VDD P_RST IN# VSS VDD VDD (Core) VSS VDD VSS P_D [12] VSS P_D [3] VDD (Core) VDD P_D [29] P_D [26] P_D [23] P_D [20] P_D [17] P_D [13] P_D [9] P_D [6] P_D [2] P_D [0] P_D [10] P_D [7] P_D [4] P_D [1] P_D [31] P_D [28] P_D [25] P_D [22] P_D [19] P_D [16] P_ CLK P_D [30] P_D [27] P_D [24] P_D [21] P_D [18] P_D [15] P_D [14] P_D [11] P_D [8] P_D [5]
D L_OE L_OE
E L_BWE L_BWE L_WE F
L_ L_BWE L_BWE VDD ADSC# [0]# [1]# [0] L_OE [0]# L_D [2] L_D [6] L_D [1] L_D [4] L_D [8] L_D [11] L_D [14] L_D [17] L_D [20] L_D [23] L_D [27] L_D [30] L_WE [2]# [2]# EN# L_D [12] L_D [15] L_D [18] L_D [21] L_D [24] L_D [28] L_D [31] L_ S_ CLK TABT# S_ S_ EOF# OVLD# S_ IRDY S_ CLK VSS L_WE [0]# L_D [5] VDD VSS VDD (Core) VSS VDD L_D [26] VSS VDD VSS S_D [0] S_D [1] S_D [2] S_D [4] S_D [3] S_D [5] S_D [6] VSS S_D [7] S_D [8] S_D [9] VDD S_D [10] S_D [11] S_D [12] VDD (Core) S_D [13] S_D [14] S_D [15] VSS VDD S_D [17] S_D [16] VDD S_D [20] S_D [19] S_D [18] VSS S_D [23] S_D [22] S_D [21] S_D [25] S_D [26] VSS S_D [24]
G L_D H J K L
L_D [3] L_D [7] L_D [9] L_D [10] [13]
M L_D N P R T U V
L_D [16] L_D [19] L_D [22] L_D [25] L_D [29]
VSS S_REQ S_REQ S_GNT [7]# [8]# [8]# S_D S_REQ S_GNT S_GNT S_GNT S_GNT [29] [1]# [4]# [5]# [6]# [7]# VDD S_D [27] S_D [28] S_D [30] VDD S_REQ S_REQ [4]# [5]# S_HP S_GNT S_REQ S_GNT REQ# [1]# [6]# [3]# S_D S_REQ S_GNT S_REQ [31] [2]# [2]# [3]#
W L_OE S_MSG Y
T_ MODE
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset 1.5 Pin Reference Table: (256 Pin PQFP& 256-BGA)
Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
SC220 XpressFlow Engine
Pin No.
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
Signal Name
L_A[13] L_A[14] L_A[15] VSS L_A[16] L_A[17] VDD L_A[18] L_A[19] / L_OE[3]# L_WE[1]# L_OE[1]# L_BWE[3]# L_BWE[2]# L_BWE[1]# L_BWE[0]# L_ADSC# VSS L_WE[0]# L_OE[0]# VDD L_D[0] L_D[1] L_D[2] L_D[3] L_D[4] L_D[5] L_D[6] VSS L_D[7] L_D[8] VDD VDD (Core) L_D[9] L_D[10] VSS (Core) L_D[11] L_D[12] L_D[13] L_D[14] L_D[15] VSS L_D[16] L_D[17] VDD L_D[18] L_D[19] L_D[20] L_D[21] L_D[22] L_D[23] L_D[24] VSS L_D[25] L_D[26] VDD L_D[27] L_D[28] L_D[29] L_D[30] L_D[31] VSS L_WE[2]# L_OE[2]#
Signal Name
TEST VSS L_CLK VDD S_EOF# S_TABT# S_MSGEN# S_IRDY S_OVLD# VSS S_CLK VDD S_D[0] VDD (Core) S_D[1] S_D[2] VSS (Core) S_D[3] VSS S_D[4] S_D[5] VDD S_D[6] S_D[7] S_D[8] S_D[9] VSS S_D[10] S_D[11] VDD S_D[12] S_D[13] S_D[14] S_D[15] VSS S_D[16] S_D[17] VDD S_D[18] S_D[19] S_D[20] S_D[21] VSS S_D[22] S_D[23] VDD S_D[24] VSS (Core) S_D[25] S_D[26] VDD (Core) S_D[27] VSS S_D[28] S_D[29] VDD S_D[30] S_D[31] S_HPREQ# S_REQ[1]# S_GNT[1]# S_REQ[2]# VSS S_GNT[2]#
Pin No.
129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192
Signal Name
S_REQ[3]# S_GNT[3]# S_REQ[4]# S_GNT[4]# S_REQ[5]# S_GNT[5]# S_REQ[6]# VSS S_GNT[6]# S_REQ[7]# S_GNT[7]# S_REQ[8]# S_GNT[8]# P_D[0] P_D[1] VDD P_D[2] P_D[3] VSS P_D[4] P_D[5] P_D[6] P_D[7] VDD P_D[8] P_D[9] VSS P _D[10] P_D[11] VSS (Core) P_D[12] P_D[13] VDD (Core) VDD P_D[14] P_D[15] VSS P_D[16] P_D[17] P_D[18] P_D[19] VDD P_D[20] P_D[21] VSS P_D[22] P_D[23] P_D[24] P_D[25] VDD P_D[26] P_D[27] VSS P_D[28] P_D[29] P_D[30] P_D[31] VDD P_CLK VSS P_RSTIN# P_RSTOUT P_RWC P_INT
Pin No.
193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256
Signal Name
P_RDY# P_BS16# P_CS# P_ADS# VDD P_A[1] P_A[2] VSS P_A[3] P_A[4] P_A[5] P_A[6] P_A[7] VDD (Core) P_A[8] P_A[9] VSS (Core) P_A[10] P_A[11] VSS C_D[15] C_D[14] VDD C_D[13] C_D[12] C_D[11] C_D[10] C_D[9] C_D[8] C_D[7] VSS C_D[6] C_D[5] VDD C_D[4] C_D[3] C_D[2] C_D[1] C_D[0] C_EC# C_CM# VSS C_FF# C_MF# VDD C_WE# VSS (Core) C_CE# L_WE[3] VDD (Core) L_A[2] / P_C[0] L_A[3] / P_C[1] L_A[4] / P_C[2] L_A[5] / P_C[3] L_A[6] VSS L_A[7] L_A[8] VDD L_A[9] L_A[10] L_A[11] L_A[12]
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
SC220 XpressFlow Engine
Note:
*
For 256-BGA package: F4, K4, P4, U5, U9, U12, V11, V15, V17, R17, J17, F17, D17, D14, D12, D8 and D6 are VDD. For 256-BGA package: D4, M4, U10, P17, G17 and D15 are VDD(Core). For 256-BGA package: E4, G4, L4, N4, T4, U6, U8, U11, U13, W14, T17, M17, K17, H17, E17, D16, D13, D10, D9, D7, and D5 are VSS.
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset 2 FUNCTIONAL DESCRIPTION 2.1 CAM Interface
t Direct interface with MUSIC MU9C1480 1k x
SC220 XpressFlow Engine
Command Block Response Data Block
From HISC
64 bit Content Addressable Memory (CAM) Expandable to support 8k MAC Addresses
t Two access masters: HISC in XpressFlow CAM
CAM Interface Logic
To HISC
Engine, and Switch Manager CPU
t Master interface with CAM Interface logic via
Command Block Response Data Block
From CPU
two dedicated CAM Command Blocks One for HISC One for Switch Manager CPU
t Both HISC and Switch Manager CPU can ac-
To CPU
Block Diagram - CAM Interface
cess the CAM by setting up their corresponding CAM Command Blocks, and read the return information from their own Response Data Block 2.1.1 Pin Description Symbol C_D[15:0] C_CE# Type TTL I/O-TS CMOS Output Name & Functions
C_WE# C_CM# C_EC# C_MF# C_FF#
CAM Data Bus bit [15:0] - a 16-bit data bus for Data/Command input/output. CAM Chip Enable - Enables the CAM by registers the control signals on its falling edge and release them on its rising edge. Also used for locking and unlocking the cascaded daisy chain. CMOS CAM Write Enable - allows to write data or command to CAM Output CMOS CAM Data/Command Select - defines data or command operations Output CMOS CAM Enable Comparison - latches and enables the MF and FF outputs Output during a comparison cycle. TTL CAM Match Flag - indicates a valid match during a comparison cycle. Input TTL CAM Full Flag - indicates there is no empty location in the CAM. Input
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
2.1.2 Bus Cycle Waveforms
S_CLK
SC220 XpressFlow Engine
C_CE#
C_CM#
C_EC#
C_WE#
C_MF#
C_D[15:0] Write MAC Address Byte 0, & 1 Write MAC Address Byte 2, & 3 Write MAC Address Byte 4, & 5 Read MAC Control Buffer Pointer
Typical MAC Address Compare Operation Note: Refer to MUSIC MU9C1480 CAM data sheet for detailed timing parameters.
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XpressFlow-2020 Series - Ethernet Switch Chipset 2.2 Local Memory (Control Buffer Memory) Interface
t Uses industry standard Synchronous Burst SRAM (Pipe-lined Mode)
SC220 XpressFlow Engine
Supports 64k x 32, 128k x 32, or 256k x 32 chips up to maximum 2M bytes
t Provides 4 individual Byte Write Enable controls t Supports back to back Read or Write operations
2.2.1
Pin Description Symbol L_D[31:0] Type Name & Functions
TTL Local Memory Data Bus Bit [31:0] - a 32-bit synchronous data bus. I/O-TS L_A[18:2] CMOS Local Memory Address Bus Bit [18:2] - Bit [17:2] of a synchronous adOutput dress bus. The memory address is sampled when L_CS# is enabled and L_ADSC# is asserted. L_A[19] / CMOS Local Memory Address Bus Bit [19] or Local Memory Write Chip Select L_WE[3]# Output [3] - Depends on memory configuration, this pin can be used as the Local Memory Address Bit [19] or as the Local Memory Write Chip Select [3]. L_WE[2:0]# CMOS Local Memory Write Chip Select [2:0] - allows up to write one of the 4 Output banks of memory. L_OE[3:0]# CMOS Local Memory Read Chip Select [3:0] - allows up to read one of the 4 Output banks of memory. L_BWE[3:0]# CMOS Local Memory Byte Write Enable [3:0] - use to write individual bytes. Output L_ADSC# CMOS Local Memory Controller Address Status - to load a new address. Output L_CLK CMOS Local Memory Clock - a synchronous clock to memory devices. Output
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
Supported Memory Configurations
SC220 XpressFlow Engine
Read/Write Chip Select and High Address Bits Chip #3 RAM Chip Size 64k x 32 # of RAM Chips 1 2 4 128k x 32 1 2 4 256k x32 1 2 Chip #2 Chip #1 Chip #0 Total Buffer L_A[19] / L_OE[3]# L_WE[2]# L_OE[2]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]# Memory L_WE[3]# Size 256k bytes 512k bytes 256k bytes 1M bytes 1M bytes 2M bytes ------------L_A[19] L_A[19] ------------------------------------------------------------L_WE[0]# L_OE[0]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]# ------L_WE[0]# L_OE[0]#
1M bytes L_WE[3]# L_OE[3]# L_WE[2]# L_OE[2]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]# ------L_WE[0]# L_OE[0]#
2M bytes L_WE[3]# L_OE[3]# L_WE[2]# L_OE[2]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]# L_WE[1]# L_OE[1]# L_WE[0]# L_OE[0]#
2.2.2
Bus Cycle Waveforms
L_CLK L_ADSC# L_CS# L_A[19:2]
A1
A2
A3
A3+1
A3+2
A3+3
A4
A4+1
A4+2
A4+3
A5
A6
L_WE[3:0]# L_BWE[3:0]# L_OE[3:0]#
L_D[31:0] (Wr)
D1
D3
D3+1
D3+2
D3+3
D6
L_D[31:0] (Rd)
D2
D4
D4+1
D4+2
D4+3
D5
Typical Local Memory Access Operations Note: Refer to manufacturer's data sheet for detailed timing parameters.
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XpressFlow-2020 Series - Ethernet Switch Chipset
2.3 Management Bus Interface
t Supports various industry standard micro-
SC220 XpressFlow Engine
t Provides separate Address and Data bus t Supports Big & Little Endian byte ordering t Supports 16- or 32-bit Data Bus t Provides a single interrupt signal to Switch
processors including: Intel 186/486 family or equivalent Motorola MPC series embedded processors
t Easily adapts to other industry standard CPUs
Manager CPU
2.3.1
Pin Description
Symbol P_C[4:0] Type Name & Functions CMOS Input Processor Configuration bit [4:0]: - During the Reset Cycle, the P_C[4:0] pins provides the processor configuration. By using external weak pull-up or -down resistors, they define the External Management Bus Interface Configuration. These inputs are sampled at the trailing edge of the Reset cycle. C[0] - Defines the CPU Clock input is 1X or 2X clock C[1] - Selects either Big or Little Endian byte ordering C[2] - Defines the polarity of the P_RWC (Rd/Wr Control) input C[3] - Defines the CPU Data Bus width - 16-bit or 32-bit C[4] - Defines the timing relationship between P_RDY and P_D[15:0] valid. If C[4] is High, the P_D[15:0] are valid along in the same clock period as P_RDY is asserted. If C[4] is Low, the P_RDY is asserted one clock period early ahead of the P_D[15:0] are valid. C[0] CPU Clock Lo Hi P_A[11:1] P_D[15:0] P_ADS# P_RWC TTL In (5VT) TTL I/O-TS (5VT) TTL In (5VT) TTL Input (5VT) 1X Clock 2x Clock C[1] Byte Order Little Endian Big Endian C[2] RWC P_R/W# P_W/R# C[3] Bus Width 16-bit 32-bit C[4] RDY Timing Normal Early
After RESET, these pins are used as XpressFlow Bus Data bit [31:27]. Address Bus Bit [11:1] - I/O port address Data Bus Bit [15:0] - a 16-bit synchronous data bus. Address Strobe - indicates valid address is on the bus Read/Write Control - indicates the current bus cycle is a read or write cycle. C[1] defines the polarity of this signal during the Reset cycle. C[1]=Low P_R/W# is used for PowerPC or other similar processors. C[1]=High P_W/R# is used for 386, 486 or other similar processors Data Ready - timing indicates for bus data valid Bus Size 16 - response to bus master that the SC-201 only supports 16-bit data bus width. Chip Select - indicates the XpressFlow Engine is the target for the current bus operation. Interrupt Request to Switch Manager CPU The polarity of this signal output is programmable via chip configuration register. Power Up Reset Input - Asynchronous Reset Input from either Power-Up Reset circuit or from Switch Manager CPU (except 386) Synchronous Reset Output - Synchronous Reset Output for i386 family as the Switch Manager CPU CPU Clock - 1X Clock for the others
P_RDY# P_BS16# P_CS# P_INT P_RSTIN# P_RSTOUT P_CLK Note:
*
TTL OutOD TTL Out-OD TTL In (5VT) TTL Output TTL In-ST (5VT) CMOS Output TTL In (5VT)
*
Output signal with programmable polarity. 15 Rev. 4.5 - February
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
2.3.2 Motorola MPC801 Processor Interface
P_CLK {CLKOUT} P_ADS# {TS#} P_A[11:1] {A[20:30]} P_CS# P_RWC {RD/WR#} P_RDY# {TA#} P_D[31:0] {D[0:31]} (in) P_D[31:0] {D[0:31]} (out)
SC220 XpressFlow Engine
Note:
Mnemonics within {} are the equivalent signals defined by MPC801 Typical Motorola MPC801 CPU I/O Access Operations
2.3.3 Intel 486 Processor Interface
P_CLK P_ADS# P_A[11:1] P_CS# P_W/R# P_RDY# P_D[31:0] (in)
P_D[31:0] (out)
Typical 486 CPU I/O Access Operations
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XpressFlow-2020 Series - Ethernet Switch Chipset 2.3.4 Intel 386 Processor Interface
P_CLK
SC220 XpressFlow Engine
PH2 (internal)
PH2
P_ADS#
P_A[11:1]
P_CS#
P_W/R#
P_RDY#
P_D[15:0] (in)
P_D15:0] (out)
Typical 386 CPU I/O Access Operations
P_CLK
PH2 (internal)
PH2 or PH1
PH2
PH1
PH2
P_RSTIN#
P_RSTOUT#
Internal PH2 Clock Synchronization Note: See Intel 386 Processor Data Book for more details
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XpressFlow-2020 Series - Ethernet Switch Chipset 2.3.5 Register Map
Note:
SC220 XpressFlow Engine
All 32-bit registers are D-word aligned. All 16-bit registers are also D-word aligned and right justified. For the Little Endian CPUs, register offset bit [1,0] are always set to be 00. For the Big Endian CPUs, register offset bit [1,0] are always set to be 10. This is a Global Register. CPU is allowed to write the Global Register of all devices by a single operation. These registers are reserved for system diagnostic usage only. I/O Offset Little Big Reg. Endian Endian Size hF00 hF00 hF10 hF20 hF30 hF40 hF50 hF80 hF90 hFA0 hFB0 hE08 hE18 hE28 hE40 hE50 hE68 hE6C hE68 hE6C hF02 hF02 hF12 hF22 hF32 hF42 hF52 hF82 hF92 hFA2 hFB2 hE08 hE18 hE28 hE42 hE52 hE68 hE6C hE68 hE6C 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 32-bit 32-bit 32-bit 16-bit 16-bit 32-bit 32-bit 32-bit 32-bit
Register Description Device Configuration Registers (DCR) GCR Global Control Register DCR0 Device Status Register DCR1 Signature & Revision Register DCR2 ID Register DCR3 Local Control Register DCR4 Interface Status Register DCR5 Bus Credit Register Interrupt Controls ISR Interrupt Status Register - Unmasked ISRM Interrupt Status Register - Masked IMSK Interrupt Mask Register IAR Interrupt Acknowledgment Register Buffer Memory Interface MWAR Memory Write Address Register - Single Cycle MRAR Memory Read Address Register - Single Cycle MBAR Memory Address Register - Burst Mode MWBS Memory Write Burst Size (in D-words) MRBS Memory Read Burst Size (in D-words) MWDR Memory Write Data Register MWDX Memory Write Data Register - Byte Swapping MRDR Memory Read Data Register MRDX Memory Read Data Register - Byte Swapping Buffers & Stacks Management Frame Control Buffers FCBBA Frame Control Buffer - Base Address FCBA Frame Control Buffer - Buffer Allocation FCBR Frame Control Buffer - Buffer Release FCBAG Frame Control Buffer - Buffer Aging Status FCBSA Frame Ctrl Buffer Stack - Base Address FCBSL Frame Ctrl Buffer Stack - Size Limit FCBST Frame Ctrl Buffer Stack - Buffer Low Threshold FCBSS Frame Ctrl Buffer Stack - Allocation Status
(c) 1998 Vertex Networks, Inc. 1999 18
W/R
Note:
W/---/R --/R W/R W/R --/R W/R --/R --/R W/R W/-W/R W/R W/R W/R W/R W/-W/---/R --/R
hD00 hD20 hD20 hD30 hD80 hD90 hDA0 hDB0
hD02 hD22 hD22 hD32 hD82 hD92 hDA2 hDB2
16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit
W/R --/R W/---/R W/R W/R W/R --/R
Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset
SC220 XpressFlow Engine
I/O Offset Little Big Reg. Endian Endian Size
Register Description Buffers & Stacks Management (Continue) Switch Control Buffers SCBBA Switch Control Buffer - Base Address SCBA Switch Control Buffer - Buffer Allocation SCBAG Switch Control Buffer - Buffer Aging Status SCBSA Switch Ctrl Buffer Stack - Base Address SCBSL Switch Ctrl Buffer Stack - Size Limit SCBST Switch Ctrl Buffer Stack - Buffer Low Threshold SCBSS Switch Ctrl Buffer Stack - Allocation Status MAC Control Tables MCTA MAC Control Table - Table Allocation MCTR MAC Control Table - Table Release MCTSA MAC Ctrl Table Stack - Base Address MCTSS MAC Ctrl Table Stack - Allocation Status Queue Management QSBA Queue Structure - Base Address MFTA Multicast Frame Table - Base Address CINQ CPU Input Queue COTQ CPU Output Queue CSQ0 CPU Status Queue - 1st D-word CSQ1 CPU Status Queue - 2nd D-word CSQ2 CPU Status Queue - 3rd D-word CAM Interface CCWR CAM Command/Data Write Register CSRL CAM Status/Data Read Register Low CSRH CAM Status/Data Read Register High HISC Control HPCR HISC Processor Control Register HMCL HISC Micro-Code Loading Port HPRC HISC Priority Control Register
W/R
Note:
hC00 hC20 hC30 hC80 hC90 hCA0 hCB0 hB20 hB20 hB80 hBB0 hA00 hA10 hA88 hA88 hA98 hAA8 hAB8 h908 h928 h938 h980 h998 h9B0
hC02 hC22 hC32 hC82 hC92 hCA2 hCB2 hB22 hB22 hB82 hBB2 hA02 hA12 hA88 hA88 hA98 hAA8 hAB8 h908 h928 h938 h982 h998 h9B2
16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 16-bit 32-bit 32-bit 32-bit 32-bit 32-bit 32-bit 32-bit 32-bit 16-bit 32-bit 16-bit
W/R --/R --/R W/R W/R W/R --/R --/R W/W/R --/R W/R W/R W/---/R --/R --/R --/R W/---/R --/R W/R W/R W/R
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XpressFlow-2020 Series - Ethernet Switch Chipset 2.4 XpressFlow Bus Interface
t Vertex Networks' optimized XpressFlow Bus
SC220 XpressFlow Engine
Data Messages for forwarding an Ethernet frame from receiving port to transmission port
t Built-in intelligent bus load regulator for data
architecture
t Provides 1G bps switching bandwidth t Full multi bus master structure t Allows XpressFlow Engine to communicate
traffic balancing
t Provides centralized bus arbitration with two
with Access Controllers via a message passing protocol Command Messages for passing control information between devices
level request priorities High priority for Data Messages Low priority for Command Messages
2.4.1 Pin Description
Symbol S_D[31:0] Type Name & Functions
CMOS Data Bus Bit [31:0] - a 32-bit synchronous data bus. I/O-TS Note: During the system RESET period, Data Bit [31:28] are used as Processor Interface Configuration bit [0:3] S_MSGEN# CMOS Message Envelope - encompasses the entire period of a message I/O-TS transfer. Targets use the leading edge of this signal to detect the beginning of a message transfer, and to decode the message header for the intended target(s). S_EOF# CMOS End of Frame - only used by frame data transfer messages to identify I/O-TS the end of frame condition. This signal is synchronous with the Rx Frame Status word appended to the end of the message. S_IRDY CMOS Initiator Ready - a normal true signal. When negated, it indicates the I/O-TS initiator had asserted wait state(s) in between command words. Target should use this signal as enable signal for latching the data from the bus. S_TABT# CMOS Target Abort - when asserted, the target had aborted the reception of I/O-OD current message on the bus. S_HPREQ# CMOS High Priority Request - indicates one or more Bus Requester is reI/O-OD questing for high priority message transfer. S_REQ[8:1]# CMOS Bus Request [8:1] - Bus Request signals from Access Controllers to Input Bus Access Arbitrator in XpressFlow Engine S_GNT[8:1]# CMOS Bus Grant [8:1] - Bus Grant signals from Bus Arbitrator to Bus ReOutput questers S_OVLD# CMOS Bus Overload - when asserted all data forwarding bus bandwidth has Output been allocated. Cannot support additional load for data forwarding traffic S_CLK CMOS XpressFlow Bus Clock - 33MHz system clock Input
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
2.4.2 Bus Cycle Waveforms
S_CLK
SC220 XpressFlow Engine
S_MSGEN#
S_D[31:0]
C0
C1
D0
D1
D2
D3
D4
D5
EoF
S_EOF#
S_IRDY
XpressFlow Bus Data Transfer Cycle
S_CLK
S_MSGEN#
S_D[31:0]
C0
C1
C0
C1
EOF
C0
C1
S_EOF#
S_TABT#
Command Cycle
Data Xfer w/o Data
Other XpressFlow Bus Cycles
Aborted Command
S_CLK
S_REQ[k]#
S_REQ[j]# S_HPREQ#
High Priority Request pre-empts the low priority request
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset
SC220 XpressFlow Engine
S_CLK
S_MSGEN#
S_REQ[j]#
S_GNT[j]#
S_HPREQ#
S_REQ[I]#
S_GNT[I]#
XpressFlow Bus arbitration
S_CLK
S_REQ[k]#
S_OVLD#
Bus Overload pre-empts the data transfer request
2.5
Test Pins
Symbol TEST Type Name & Functions
CMOS Test Mode Selection & Test Output - Set Test Mode upon Reset, I/O and provides test status output during test mode
(c) 1998 Vertex Networks, Inc. 1999
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XpressFlow-2020 Series - Ethernet Switch Chipset 3 DC SPECIFICATION 3.1 ABSOLUTE MAXIMUM RATINGS
Storage Temperature Operating Temperature Supply Voltage VDD with Respect to VSS Voltage on 5V Tolerant Input Pins Voltage on Other Pins -65C to +150C 0C to +70C +3.0 V to +3.6 V -0.5 V to (VDD + 2.5 V) -0.5 V to (VDD + 0.3 V)
SC220 XpressFlow Engine
Stresses above those listed may cause permanent device failure. Functionality at or above these limits is not implied. Exposure to Absolute Maximum Ratings for extended periods may affect device reliability.
3.2
DC CHARACTERISTICS
VDD = 3.0 V to 3.6 V; T AMBIENT = 0C to +70C Preliminary
Symbol f osc
Parameter Description Frequency of Operation ( -40) Frequency of Operation ( -50) Frequency of Operation (-66) Supply Power - @ 33.3333 MHz (VDD =3.3 V) Supply Power - @ 40 MHz (VDD =3.3 V) Supply Power - @ 50 MHz (VDD =3.3 V) Output High Voltage (CMOS) IOH = -1.0 mA Output Low Voltage (CMOS) IOL = 1.0 mA Output High Voltage (TTL) IOH = -1.0 mA Output Low Voltage (TTL) IOL = 1.0 mA Input High Voltage (CMOS) Input Low Voltage (CMOS) Input High Voltage (TTL) Input Low Voltage (TTL) Input High Voltage (TTL 5V tolerant) Input Low Voltage (TTL 5V tolerant) Input Leakage Current (0.1 V V IN V DD) (all pins except those with internal pullup/pull-down resistors) Output Leakage Current (0.1 V V OUT VDD) Input Leakage Current VIH = VDD - 0.1 V (pins with internal pull-down resistors) Input Leakage Current VIL = 0.1 V (pins with internal pull-up resistors) Input Capacitance Output Capacitance I/O Capacitance
Min 20 20 20
Typ
Max 40.0000 50.0000 66.6666 500 500 500 0.45
Unit MHz MHz MHz mA mA mA V V V V V V V V V V A
IDD
300 300 300 VDD - 0.5 2.4 VDD x 70% -0.5 2.0 -0.3 2.0 -0.3
VOH-CMOS VOL-CMOS VOH-TTL VOL-TTL VIH-CMOS VIL-CMOS VIH-TTL VIL-TTL VIH-5VT VIL-5VT ILI
0.45 VDD + 0.3 VDD x 30% VDD + 0.3 +0.8 VDD + 2.5 +0.8 10
ILO IIH IIL CIN COUT CI/O
15 60 -60 8 8 10
A A A pF pF pF
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XpressFlow-2020 Series - Ethernet Switch Chipset 4 4.1 AC SPECIFICATION XpressFlow Bus Interface:
S_CLK
SC220 XpressFlow Engine
S_CLK
S1-max S1-min
S12 S1-min
S_D[31:0]
S13 S2-min
S_D[31:0]
S2-max S2-min
S_MSGEN#
S14 S3-min
S_MSGEN#
S3-max S3-min
S_EOF#
S15 S4-min
S_EOF#
S4-max S4-min
S_IRDY
S_IRDY
S6-max S6-min
XpressFlow Bus Interface - Output float delay timing
S_TABT#
S7-max S7-min
S_HPREQ#
S8-max S8-min
S_CLK
S17 S18
S_GNT[7:0]#
S9-max S9-min
S_D[31:0]
S19 S20
S_OVLD#
S_MSGEN#
S21 S22
XpressFlow Bus Interface - Output valid delay timing
S_EOF#
S23 S24
S_IRDY
S27 S28
S_TABT#
S29 S30
S_HPREQ#
S31 S32
S_REQ[7:0]#
XpressFlow Bus Interface - Input setup and hold timing
(c) 1998 Vertex Networks, Inc. 1999
24
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XpressFlow-2020 Series - Ethernet Switch Chipset
-40 Symbol S1 S2 S3 S4 S6 S7 S8 S9 S12 S13 S14 S15 S17 S18 S19 S20 S21 S22 S23 S24 S27 S28 S29 S30 S31 S32 Parameter S_D[31:0] output valid delay S_MSGEN# output valid delay S_EOF# output valid delay S_IRDY output valid delay S_TABT# output valid delay S_HPREQ# output valid delay S_GNT[7:0]# output valid delay S_OVLD# output valid delay S_D[31:0] output float delay S_MSGEN# output float delay S_EOF# output float delay S_IRDY output float delay S_D[31:0] input set-up time S_D[31:0] input hold time S_MSGEN# input set-up time S_MSGEN# input hold time S_EOF# input set-up time S_EOF# input hold time S_IRDY input set-up time S_IRDY input hold time S_TABT# input set-up time S_TABT# input hold time S_HPREQ# input set-up time S_HPREQ# input hold time S_REQ[7:0]# input set-up time S_REQ[7:0]# input hold time 2 5.5 2 5.5 2 5.5 2 5.5 5.5 5.5 4.5 5.5 6 5.5 Min (ns) 6 6 6 6 6 6 6 6 Max (ns) 14 14 14 14 14 14 14 14 18 18 18 18 1.5 4.5 1.5 4.5 1.5 4.5 1.5 4.5 4.5 4.5 3.5 4.5 5 4.5 -50 Min (ns) 5 5 5 5 5 5 5 5 Max (ns) 11 11 11 11 11 11 11 11 15 15 15 15 1 3.5 1 3.5 1 3.5 1 3.5 3.5 3.5 2.5 3.5 4 3.5
SC220 XpressFlow Engine
-66 Min (ns) 4 4 4 4 4 4 4 4 Max (ns) 8.5 8.5 8.5 8.5 8.5 8.5 8.5 8.5 12 12 12 12 Note: CL = 50pf CL = 50pf CL = 50pf CL = 50pf CL = 50pf CL = 50pf CL = 20pf CL = 50pf
AC Characteristics -- XpressFlow Bus Interface
(c) 1998 Vertex Networks, Inc. 1999
25
Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset 4.2 CPU Bus Interface:
P_CLK
P15 P16-min
SC220 XpressFlow Engine
P_CLK
P1 P2
P_RST#
P3 P4
P_D[31:0]
P_ADS#
CPU Bus Interface - Output float delay timing
P5 P6
P_W/R#
P7 P8
P_CLK
P16-max P16-min
P_CS#
P9 P10
P_D[31:0]
P17-max P17-min
P_A[11:1]
P11 P12
P_RDY# P_D[31:0]
P18-max P18-min
P_INT
CPU Bus Interface - Input setup and hold timing
CPU Bus Interface - Output valid delay timing
-40 Symbol P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P15 P16 P17 P18 Parameter P_RST# input setup time P_RST# input hold time P_ADS# input set-up time P_ADS# input hold time P_W/R# input set-up time P_W/R# input hold time P_CS# input set-up time P_CS# input hold time P_A[11:1] input set-up time P_A[11:1] input hold time P_D[31:0]# input set-up time P_D[31:0]# input hold time P_D[31:0]# output float delay P_D[31:0]# # output valid delay P_RDY# output valid delay P_INT# output valid delay Min (ns) 13 3.5 13 3.5 13 3.5 13 3.5 13 3.5 13 3.5 17 17 13 8.5 Max (ns) Min (ns) 10 2.5 10 2.5 10 2.5 10 2.5 10 2.5 10 2.5
-50 Max (ns) Min (ns) 8 2 8 2 8 2 8 2 8 2 8 2 13 13 10 6.5
-66 Max (ns) Note:
10 10 8 5 CL = 60pf CL = 60pf CL = 20pf
AC Characteristics -- CPU Bus Interface
(c) 1998 Vertex Networks, Inc. 1999
26
Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset 4.3 Local Memory Interface:
Local Memory Interface:
L_CLK
L1 L2
SC220 XpressFlow Engine
L_CLK
L3-max L3-min
L_D[31:0]
L_D[31:0]
L4-max L4-min
Local Memory Interface - Input setup and hold timing
L_A[19:2]
L5-max L5-min
L_CS[3:0]# L_CLK
L10 L3-min L6-max L6-min
L_ADSC#
L7-max L7-min
L_D[31:0]
Local Memory Interface - Output float delay timing
L_BWE[3:0]#
L8-max L8-min
L_WE#]
L9-max L9-min
L_OE#
Local Memory Interface - Output valid delay timing
-40 Symbol L1 L2 L3 L4 L6 L7 L8 L9 L10 Parameter L_D[31:0]# input set-up time L_D[31:0]# input hold time L_D[31:0]# output valid delay L_A[19:2] output valid delay L_ADSC# output valid delay L_BWE[3:0]# output valid delay L_WE# output valid delay L_OE# output valid delay L_D[31:0]# output float delay Min (ns) 6.5 3 5 5 5 5 5 5 17 17 17 17 17 17 22 Max (ns) Min (ns) 5.5 2.5 4 4 4 4 4 4
-50 Max (ns) Min (ns) 4 2 13 13 13 13 13 13 18 3 3 3 3 3 3
-66 Max (ns) Note:
10 10 10 10 10 10 14
CL = 30pf CL = 30pf CL = 30pf CL = 30pf CL = 10pf CL = 10pf
AC Characteristics - Local Memory Interface
(c) 1998 Vertex Networks, Inc. 1999
27
Rev. 4.5 - February
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XpressFlow-2020 Series - Ethernet Switch Chipset 4.4 CAM Memory Interface:
S_CLK
C1 C2
SC220 XpressFlow Engine
S_CLK
C7-max C7-min
C_D[15:0]
C3 C4
C_D[15:0]
C8-max C8-min
C_MF#
C5 C6
C_FF#
C_CE#
C9-max C9-min
CAM Memory Interface - Input setup and hold timing
C_WE#
C10-max C10--min
C_CM# S_CLK
C12 C7-min C11-max C11-min
C_EC#
C_D[15:0]
CAM Memory Interface - Output float delay timing -40 Symbol C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 Parameter C_D[15:0]# input set-up time C_D[15:0]# input hold time C_MF# input set-up time C_MF# input hold time C_FF# input set-up time C_FF# input hold time C_D[15:0]# output valid delay C_CE# output valid delay C_WE# output valid delay C_CM# output valid delay C_CE# output valid delay C_D[16:0]# output float delay -50
CAM Memory Interface - Output valid delay timing
-66 Note:
Min Max Min Max Min Max (ns) (ns) (ns) (ns) (ns) (ns) 4.5 1.5 4.5 1.5 4.5 1.5 5 5 5 5 5 18 18 18 18 18 13 4 1.5 4 1.5 4 1.5 4 4 4 4 4 15 15 15 15 15 10 5 2 5 2 5 2 6 6 6 6 6 20 20 20 20 20 15
AC Characteristics - CAM Memory Interface
(c) 1998 Vertex Networks, Inc. 1999
28
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XpressFlow-2020 Series - Ethernet Switch Chipset 5 5.1 PACKAGING INFORMATION 256-PIN PQFP
SC220 XpressFlow Engine
30.6 0.20 25.2 REF
256 1
Pin 1 I.D.
193 192
A
B
25.2 REF
28.0 30.6 0.20 0.20
64
129
65
0.40 TYP
128
D 28.0 0.20 0.14/0.22
4.10 MAX.
3.40 0.20
C 0.25 MIN. 1.30 REF. 0.50/0.75
(c) 1998 Vertex Networks, Inc. 1999
29
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XpressFlow-2020 Series - Ethernet Switch Chipset 5.2 256- Pin BGA
SC220 XpressFlow Engine
B Pin 1 I.D.
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H J K L M N P R T U V W Y
A
27.00
1.27
C 2.50 max 24.13 0.50 / 0.70
Ordering Information Part Number SC220 Description XpressFlow Switch Engine Environmental - Speed grade C = Commercial I = Industrial 0 = 40 MHz 5 = 50 MHz 6 = 66 MHz B = BGA P= PQFP Identification C0B Vertex Networks Use TAV Revision 001 = Rev.1 For latest revision, leave blank Revision rrr
Package -
This document contains preliminary information on our product. Vertex reserves the right to make any changes without notice.
16842 Von Karman Ave, Suite 250 Irvine, CA 92606-4950 Tel. 1-714-252-8880, FAX: 1-714-252-8868 Web Site: www.vertex-networks.com
Rev. 4.5- February, 1999
(c) 1998 VERTEX NETWORKS
E1
E
DIMENSION A A1 A2 D D1 E E1 b e
MIN MAX 2.20 2.46 0.50 0.70 1.17 REF 27.20 26.80 24.00 REF 27.20 26.80 24.00 REF 0.60 0.90 1.27 256 Conforms to JEDEC MS - 034
e D1 D
A2 A1 A
1. CONTROLLING DIMENSIONS ARE IN MM 2. DIMENSION "b" IS MEASURED AT THE MAXIMUM SOLDER BALL DIAMETER 3. PRIMARY DATUM -C- AND SEATING PLANE ARE DEFINED BY THE SPHERICAL CROWNS OF THE SOLDER BALLS. 4. N IS THE NUMBER OF SOLDER BALLS 5. NOT TO SCALE. 6. SUBSTRATE THICKNESS IS 0.56 MM
c Zarlink Semiconductor 2003 All rights reserved.
Package Code Previous package codes:
ISSUE ACN DATE APPRD.
D D1
= 0-7
A A2 A1
E1
E
L INDEX CORNER PIN 1
Notes: 1. Pin 1 indicator may be a corner chamfer, dot or both. 2. Controlling dimensions are in millimeters. 3. The top package body size may be smaller than the bottom package body size by a max. of 0.15 mm. 4. Dimension D1 and E1 do not include mould protusion.
c Zarlink Semiconductor 2003 All rights reserved.
Package Code Previous package codes:
ISSUE ACN DATE APPRD.
For more information about all Zarlink products visit our Web Site at
www.zarlink.com
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively "Zarlink") is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink's conditions of sale which are available on request.
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