View OXCFU950_1103590.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

OXCFU950 Overview
FEATURES
* * * USB/UART multi-function 16-bit PC Card device Host interface * 16-bit PC Card (PCMCIA revision 8.0) compliant * CompactFlash/CF+ (revision 3.0) compliant USB host controller * Supports USB 2.0/1.1 full-speed compliant (12 Mbps) & low speed (1.5 Mbps) devices * 8-Kbyte data buffer * Integrated OHCI-like controller supported by Oxford Semiconductor drivers * Supports control, bulk, interrupt & isochronous transfers * Supports USB PORT_OVER_CURRENT & PORT_POWER signals via MIO pins Integrated USB PHY transceivers Flexible OX16C95x-based UART * Supports 450 up to 950 (fully programmable) * Baud rates up to 12 Mbps * 128-byte deep transmit/receive FIFO * Software-compatible with standard 16C550 * Readable FIFO levels * 9-bit data framing as well as 5,6,7 & 8 * Detection of bad data in the receiver FIFO Optional wakeup from low-power mode Automated in-band flow control using programmable Xon/Xoff characters * Automated hardware flow control using CTS#/RTS# & DSR#/DTR# * Integral support for 4-byte I/O access for enhanced host-side data throughput 8-Kbit x 8 EEPROM for CIS & default configuration. Programmable using Oxford Semiconductor utilities Power management for low-power operation * USB suspend & resume * UART sleep mode Single 12-MHz crystal oscillator for low power 4 multi-purpose I/O pins configurable as interrupts UART & MIO pins have variable I/O voltage levels from 1.8 V to 3.3 V nominal PC Card/CF+ I/Os are all 3.3 V with 5-V tolerance Single supply voltage range 2.85 V to 3.6 V Internal regulation for 1.8 V Supply current * Less than 4 mA idle * Less than 13 mA active Industrial temperature range -40C to +85C 64-pin QFN (9 mm x 9 mm) package * *
* * * * * * * * * * *
* *
DESCRIPTION
The OXCFU950 is a low-cost, synchronous 16-bit PC Card (PCMCIA) or CompactFlash/CF+ to UART and USB host controller. It combines the high performance of Oxford Semiconductor OX16C95x UART technology with USB host capabilities. The inclusion of both a UART and USB make the OXCFU950 ideal for wireless data cards. The OXCFU950 integrates an OHCI-based USB host controller, which supports a single USB port via the integrated transceiver. An 8-Kbyte memory provides an efficient interface for buffer and control structures between the USB controller and the device driver. The attribute memory, UART and USB registers can be programmed via the internal EEPROM during power up or hard/soft reset, allowing different card manufacturers to customize information contained in the attribute memory or UART/USB registers, for example PC Card ID value.
The 3.3-V technology has been specified to operate as low as 2.85 V to allow an in-line regulator to be used for mixed 3-V/5-V applications. CF/PC Card pins are 5-V tolerant and the variable I/O voltage to the UART/MIO pins eases the connection to application chipsets. A number of power-down modes are included to minimize power consumption, including sleep modes for when a device function is not being used. The OXCFU950 contains a single-channel ultra-high performance OX16C95x UART offering data rates up to 12 Mbps and 128-byte deep transmitter and receiver FIFOs. Deep FIFOs reduce CPU overhead and allow utilization of higher data rates. The OXCFU950 USB controller supports OHCI-compliant host stack software (available from Oxford Semiconductor). The OXCFU950 UART is software-compatible with the widely-used industry-standard 16C550 type devices and compatibles, as well as other OX16C95x family devices.
Oxford Semiconductor, Inc. 1768 McCandless Drive Milpitas, CA 95035 USA
External--Free Release
(c) Oxford Semiconductor, Inc. 2006 OXCFU950 OV-0004--May 2006 Part No. OXCFU950--QFAG
OXFORD SEMICONDUCTOR, INC.
The addition of software resets enable the device to recover from unforeseen error conditions, allowing drivers to restart gracefully. The OXCFU950 includes four user I/O pins to enhance external device control. These I/O pins can also be configured as interrupt inputs.
OXCFU950 Overview
For simplicity, the host interface is referred to as the CompactFlash interface throughout this specification. Unless otherwise stated, this should be taken to include PCMCIA 16-bit Card operation as well as CompactFlash/CF+.
OV-0004 May 06
External--Free Release
Page 2 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
BLOCK DIAGRAM
A[10:0] D[15:0] CE[2:1]# REG# OE# WE# IREQ# IORD# IOWR# RESET PC Card Interface & Control
SOUT CIS & Configuration Registers UART SIN RTS# DTR# CTS# DSR# DCD# RI#
STSCHG#
Internal Data/Control Bus
IOIS16#
Interrupt Logic
XTLI PLL XTLO Clock & Baudrate Generator
MIO pins
MIO[3:0]
128-byte EEPROM USB_DP USB Controller USB PHY USB_DM USB_OTHER
Figure 1: Block Diagram
OV-0004 May 06
External--Free Release
Page 3 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
PIN INFORMATION
Figure 2: OXCFU950 Pin Information (QFN64)
OV-0004 May 06
External--Free Release
Page 4 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
PIN DESCRIPTIONS
Pin Number Pad TypeNote 1 Pin Name PC Card/Compact Flash Interface & ControlNote 2 14,16,17,18,21,22,23, I_C_33_5_N_ A[10:0] 25,29,31, 34 13,11,9,46,44,42,40,38 B_T_33_5_N_2_ D[15:0] ,10,8,6,45,43,41,39,37 15 I_C_33_5_N_ REG# 35,36 I_C_33_5_N_ CE[2:1]# 33 I_C_33_5_N_ OE# 26 32 30 7 19 24 I_C_33_5_N_ I_C_33_5_N_ I_C_33_5_N_ O_T_33_1 I_C_33_5_S_ O_T_33_2 WE# IORD# IOWR# WP IOIS16# RESET READY IREQ# 12 O_T_33_2 BVD1 STSCHG# Description PC Card/CompactFlash address bus, bits [10:0] PC Card/CompactFlash data bidirectional bus. Register select and I/O enable. Active-low card enable. Active-low output enable used to gate memory read data (attribute memory). Host must negate the OE# signal during write operations. Active-low write enable used for strobing memory write data (attribute memory). Active-low I/O read enable. Active-low I/O write enable. Write protect (in memory-only mode). Data is 16-bit (in I/O & memory mode). PC Card/CompactFlash reset. Note : This pin requires an external reset pulse generator (RC network) to allow for the startup time for the internal oscillator and PLL. Device ready (in memory-only mode). Active-low Interrupt request (in I/O & memory mode). Indicates to the host system that the PC Card/CF requires host software service. Note: interrupt can support level or pulsed types. Battery voltage detect 1 (in memory-only mode). Not supported so held static. Active-low status-changed pin (in memory & I/O mode). Used to alert the host system that the card status has changed. In this case it means that a function's ready state has changed. The host should check this by considering each function's PRR. Connected internally. UART serial data output. UART IrDA data output when MCR[6] is set in enhanced mode. UART serial data input. UART IrDA data input when IrDA mode is enabled (see above). Active-low modem data-carrier-detect input. Active-low modem data-terminal-ready output. If automated DTR# flow control is enabled, the DTR# pin is asserted & deasserted if the receiver FIFO reaches or falls below the programmed thresholds. In RS485 half-duplex mode, the DTR# pin may be programmed to reflect the state of the transmitter empty bit to control the direction of the RS485 transceiver buffer automatically (see register ACR[4:3]). Active-low modem request-to-send output. If automated RTS# flow control is enabled, the RTS# pin is de-asserted & reasserted when the receiver FIFO reaches or falls below the programmed thresholds. Active-low modem clear-to-send input. If automated CTS# flow control is enabled, upon de-assertion of the CTS# pin the transmitter completes the current character & enters idle mode until the CTS# pin is reasserted. Note: flow control characters are transmitted regardless of the state of the CTS# pin.
5,28,47 P_33 UART (MODEM) FunctionNote3 58 O_T_33_1 53 56 60 I_C_33_5_N_ I_C_33_5_N_ O_T_33_1
PCMCIA_VDD3V3 SOUT IrDA_Out SIN IrDA_In DCD# DTR#
485_En 59 54 O_T_33_1 I_C_33_5_N_ RTS# CTS#
OV-0004 May 06
External--Free Release
Page 5 of 11
OXFORD SEMICONDUCTOR, INC.
Pin Number 55 Pad TypeNote 1 I_C_33_5_N_ Pin Name DSR#
OXCFU950 OVERVIEW
Description Active-low modem data-set-ready input. If automated DSR# flow control is enabled, upon de-assertion of the DSR# pin, the transmitter completes the current character & enters idle mode until the DSR# pin is reasserted. Note: flow control characters are transmitted regardless of the state of the DSR# pin. Active-low modem ring-indicator input. Power supply to UART and MIO I/O interfaces. Voltage on these pins should be tied to 1.8 V to 3.3 V supply (depending on requirement). Crystal oscillator output. Crystal oscillator input. Frequency = 12 MHz. Note : a pull-down resistor of 500 K is required on this pin. Ground (0 Volts) for PLL & oscillator cells. This pin should be tied to ground. Power supply for PLL & oscillator cells. This pin should be tied to 1.8 volts (i.e. tied to REG_VDD1V8 pin). USB data plus. USB data minus. Power supply to USB I/O interface. This pin should be tied to 3.3 volts. Multipurpose IO pins. Note: if enabled, MIO[3:0] can be used as an interrupt inputs. MIO[3:2] can be configured to act as the USB power management control signals PORT_OVER_CURRENT & PORT_POWER Test mode select pin/default CIS select Test pin. This pin should be tied to VSS for normal operation. Main digital ground pin. The VSS pin should be tied to ground. Note this is the thermal bonding pin underneath the 64-pin QFN package Output supply from internal voltage regulator at 1.8 V. Can be used as power supply to PLL (i.e. pin #48).
57 1
I_C_33_5_N_ P_33
RI# UART_VDD3V3 XTLO XTLI PLL_VSS1V8 PLL_VDD1V8 USB_DP USB_DM USB_VDD3V3 MIO[3:0]
Crystal Oscillator / PLL pinsNote4 51 A_18 50 A_18 49 48 USBNote 5 2 3 4 Multi-Purpose I/ONote 3 64,63,62,61 P_18 P_18 A_33 A_33 P_33 B_T_33_5_N_1_
Miscellaneous Pins/PadsNote2 52 I_C_33_5_N_U 20 I_C_33_5_N_D Additional Power and Ground 65 (Thermal bonding P_00 pad) 27 P_18
CIS_MODE TEST VSS REG_VDD1V8
Table 1: Pin Descriptions Note 1 : Pad syntax description
Pad type Digital Input pad Digital Output pad Digital Tristate output pad Digital Bidirectional pad Analogue pad Power Pad Syntax t_a_xy_h_i_p t_a_xy_d t_a_xy_d t_a_xy_h_i_d_p t_xy t_xy
Table 2: Pad Type Syntax
OV-0004 May 06
External--Free Release
Page 6 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
Symbol t
Description Pad type
a xy h i d p
Logic type Operating voltage Tolerant input voltage level Input type Output drive strength Pull up/down resistor
Values I--input pad O--output pad T--Tri-state output pad B--Bidirectional pad A--Analogue pad P--Power pad C--cmos T--TTL 33--3V3 18--1V8 00--0 V (i.e. VSS Ground) 5--5 V N--same as operating voltage N--normal S--Schmitt 1--x1 drive strength 2--x2 drive strength 3--x3 drive strength U--pull up resistor D--pull down resistor
Table 3: Pad Type Syntax Symbol Descriptions Note 2 : PC Card/CompactFlash Power Domain Group * This group of signals is in the PC Card/CompactFlash power domain group. * Supply voltage range is specified from 2.85 V to 3.6 V. * This is also the internally connected supply to the internal regulator. Hence pin #28 should be connected to the PC Card/CompactFlash supply source. Note 3 : Modem Power Domain Group * This group of I/O signals is in the MODEM power domain group. * Supply voltage range is specified from 1.8 V to 3.6 V. Note 4 : Analogue Power Domain Group * This group of I/O signals is in the analogue power domain group (which supplies the oscillator and PLL). Note 5 : USB Power Domain Group * This group signals is in the USB power domain group. * Supply voltage range is specified from 2.85 V to 3.6 V.
OV-0004 May 06
External--Free Release
Page 7 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
APPLICATION
Power from CF / PCMCIA connector
3v3 Reg (if required) CF / PCMCIA Connector 1v8 output Card side I/O supply
1v8 / 2v5 / 3v3
3v3
CS Power Supply
USB
16-bit
OXCFU950-QFAG
UART / Serial
Wireless Modem Chipset
MIO / IRQ
12 MHz crystal
Figure 3: Sample Application
OV-0004 May 06
External--Free Release
Page 8 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
PACKAGE DETAILS
ccc A D aaa C A bbb C B A A2 A3 A1 0.10
A
E
LASER MARK FOR PIN 1 IDENTIFICATION IN THIS AREA
B
C
SEATING PLANE
TOP VIEW
SIDE VIEW
D2 0.55
R
Pin 1 ID 0.20 R 0.45 0.55 b 0.10 M C A B e L
L
BOTTOM VIEW
OV-0004 May 06
External--Free Release
E2
Page 9 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
Package Dimensions
Millimeter Nom A --A1 --A2 0.65 A3 0.20 REF. b 0.23 0.25 D 9.00 bsc D2 6.95 7.10 E 9.00 bsc E2 6.95 7.10 L 0.35 0.40 e 0.50 bsc R 0.125 --Tolerances of Form and Position aaa 0.10 bbb 0.10 ccc 0.05 Symbol Min -------
Max 0.90 0.05 0.70 0.28 7.25 7.25 0.45 ---
Min ------0.009 0.274 0.274 0.014 0.005
Inch Nom ----0.026 0.008 REF. 0.010 0.354 bsc 0.280 0.354 bsc 0.280 0.016 0.020 bsc --0.004 0.004 0.002
Max 0.035 0.001 0.028 0.011 0.285 0.285 0.018 ---
ORDERING INFORMATION
The following conventions are used to identify Oxford Semiconductor products:
OXCFU950 - QF A G Green (RoHS compliant) Revision: A 64-pin QFN
Package Type: QF Part Number
OV-0004 May 06
External--Free Release
Page 10 of 11
OXFORD SEMICONDUCTOR, INC.
OXCFU950 OVERVIEW
CONTACT DETAILS
Oxford Semiconductor, Inc. 1768 McCandless Drive Milpitas, CA 95035 USA Sales e-mail: Web site: sales@oxsemi.com http://www.oxsemi.com
DISCLAIMER
Oxford Semiconductor, Inc. believes the information contained in this document to be accurate and reliable. However, it is subject to change without notice. No responsibility is assumed by Oxford Semiconductor, Inc. for its use, nor for infringement of patents or other rights of third parties. No part of this publication may be reproduced, or transmitted in any form or by any means without the prior consent of Oxford Semiconductor, Inc. Oxford Semiconductor terms and conditions of sale apply at all times.
OV-0004 May 06
External--Free Release
Page 11 of 11

▲Up To Search▲

Price & Availability of OXCFU950

	To Download OXCFU950 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .