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comtech aha corporation PRODUCT BRIEF*
AHA3430 StarLite
40 MBYTES/SEC SIMULTANEOUS COMPRESSOR/DECOMPRESSOR IC, 3.3V
The high speed compression coprocessor is a single-chip CMOS VLSI device that implements a lossless compression and decompression algorithm. The algorithm exhibits an average compression ratio over 13 to 1 for bitmap image data. The device supports simultaneous compression and decompression operations at 40 MBytes/sec each. A Non-muxed microprocessor interface connects directly to various embedded processors. An additional synchronous 32-bit port transfers data at up to 160 MBytes/sec. Scanners and print engine interfaces may optionally be connected to two 8-bit synchronous video ports for emerging multifunction laser printer and copier applications.
PA3 PA2 PA1 PA0 TEST0 VOACKN VSS VDD COEORN VOD7 VOD6 VOD5 VOD4 VOD3 VSS VDD VOD2 VOD1 VOD0 VOEORN VOREQN D31 VSS VDD D30 D29 D28 D27 D26 D25
FEATURES
PERFORMANCE:
* 40 MBytes/sec compression/decompression rates * 160 MBytes/sec burst data rate over a 32-bit data bus * 40 MBytes/sec synchronous 8-bit video in and video out ports * Simultaneous compression/decompression operation at full bandwidth * Average 13 to 1 compression ratio for bitmap image data
FLEXIBILITY:
VDD VSS PA4 VDD PROCMODE1 PROCMODE0 CSN VDD VSS DIR RSTN PD7 PD6 PD5 VDD VSS PD4 PD3 PD2 PD1 PD0 VDD VSS RDYN VIACKN VID7 VID6 VID5 VDD VSS
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
AHA3430A-040 PTC
YYWW - COUNTRY OF ORIGIN LLLLL
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
VDD VSS D24 D23 D22 D21 D20 D19 D18 D17 D16 D15 VDD VSS VDD VSS CLK VDD VSS TEST1 D14 D13 D12 VDD VSS D11 D10 D9 D8 D7
* Configurable I/O interface for DMA mode, Big Endian or Little Endian, and 32-bit or 16-bit bus widths * Interfaces directly with various i960 or Motorola 68xxx family of processors * Optional 8-bit video input and output ports * Pass-through mode passes raw data through compression and decompression engines * Programmable scan line length up to 2K bytes
SYSTEM INTERFACE:
90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
* * * * * * * * * * * * *
Single chip compression/decompression solution No external SRAM required Four 16 x 32-bit FIFOs Programmable interrupts Output signals may be tristated to facilitate board level testing Low power modes Optional counter checks errors in decompression Ambient temperature spec is 70C, still air Software emulation program available 120 pin thin quad flat package 3.3V operation Firmware and pin compatible with AHA3410C RoHS compliant
OTHERS:
NOTES: YYWW = DATE CODE; LLLLL= LOT NUMBER
APPLICATIONS
* Multifunction printers and copiers * High performance laser printers and digital copiers
VID4 VID3 VID2 VID1 VID0 INTRN VSS VDD DRIVEN SD DOACKN COACKN DIACKN CIACKN VSS VDD DOREQN COREQN DIREQN CIREQN VIREQN D0 VSS VDD D1 D2 D3 D4 D5 D6
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
comtech aha corporation
*Request the AHA3430 Product Specification for complete details.
comtech aha corporation Figure 1: AHA3430 Block Diagram
COREQN DOREQN COACKN DOACKN CIREQN DIREQN CIACKN DIACKN SD
(From Scanner) VIREQN VID[7:0] VIACKN 32 D[31:0] DRIVEN
DATA PORT CONTROL VID PORT
8 COEORN
CI FIFO 16x32
8
COMPRESSOR
8
CO FIFO 16x32
DATA PORT
32
32 (To Printer)
DI FIFO 16x32
8
DECOMPRESSOR
8
DO FIFO 16x32
8
VOD PORT
VOEORN VOREQN VOD[7:0] VOACKN
CLOCK
PROCMODE[1:0]
MICROPROCESSOR INTERFACE
8 PD[7:0] PA[4:0] 5
AHA3430 StarLite
FUNCTIONAL DESCRIPTION
The coprocessor device has three external high speed synchronous data ports each capable of transferring once every 40 MHz clock. These are a 32-bit bidirectional data port, an 8-bit Video Input Data (VID) port and a Video Output Data (VOD) port. The 32-bit port is capable of transferring up to 160 MBytes/sec. The VID and VOD are capable of up to 40 MBytes/sec each. The device accepts uncompressed data through the 32-bit data or optionally through the 8-bit VID port into its Compression In FIFO (CI FIFO). The 32-bit data port may be configured for 16-bit transfers. Compressed data is available through the 32-bit data port via the Compressed Output FIFO (CO FIFO). The sustained data rate through the compression engine is 40 MBytes/sec. Decompression data may be simultaneously processed by the device. Decompression data is accepted through the 32-bit data port, buffered in the Decompression Input FIFO (DI FIFO), and decompressed. The output data is made available on the 32-bit data port via the Decompression Output FIFO (DO FIFO) or optionally on the 8-bit Video Output port. The decompression engine runs on the 40 MHz clock and is capable of processing an uncompressed byte every clock, i.e. 40 MBytes/sec.
The four FIFOs are organized as 16x32 each. For data transfers through the three ports, the "effective" FIFO widths differ according to their data bus widths. Data transfer for compression or decompression is synchronous over the three data ports functioning as DMA masters. To initiate a transfer into or out of the Video ports, the device asserts VxREQN, the external device responds with VxACKN and begins to transfer data over the VID or VOD busses on each succeeding rising edge of the clock until VxREQN is deasserted. The 32-bit port relies on the FIFO Threshold settings to determine the transfer.
SYSTEM APPLICATION
The device is intended for memory intensive applications, such as high resolution copiers or printers. These applications require the simultaneous compression and decompression capability of the device. Copiers use this feature to feed the compressed bit maps through the decompressor to the printer engine while another process uses the compressor to input and compress scanned images. Movement for both processes is typically controlled by a DMA controller that is programmed by the local microprocessor or by programmed I/O.
INTRN
RDYN
RSTN
TEST
CSN
CLK
DIR
comtech aha corporation
STARLITE IMAGE COMPRESSION RESULTS - 1200 x 1200 DPI
Uncompressed file size = 16 MBytes; Image dimensions = 10200 x 13200 pels
FONTS - Simple Text
MP - Text and Simple Graphics
Output File Size
= 783,848
Output File Size
= 86,525
Compression Ratio = 21.5
Compression Ratio = 194.5
MATH - Simple Text and Lineart
BENCH2 - Text and Graphics with Pictorials
Output File Size
= 424,995
Compression Ratio = 39.6 Output File Size = 79,245
BALLS - Complex Graphics with Pictorials
Compression Ratio = 212.4
Output File Size
= 3,665,167
Compression Ratio = 4.6
comtech aha corporation
COMPRESSOR/DECOMPRESSOR FOR MIDRANGE MULTIFUNCTION COPIER/PRINTER APPLICATIONS - AN EXAMPLE
FRAME BUFFER MEMORY
ACKN[3:0] 32 bit REQN[3:0] 2
ORDERING INFORMATION
PART NUMBER DESCRIPTION
40 MBytes/sec Simultaneous Lossless Data AHA3430A-040 PTC Compression/Decompression Coprocessor IC
ABOUT AHA
Comtech AHA Corporation (AHA) develops and markets superior integrated circuits, boards, and intellectual property core technology for communications systems architects worldwide. AHA has been setting the standard in Forward Error Correction and Lossless Data Compression technology for many years and provides flexible, cost-effective solutions for today's growing bandwidth and reliability challenges. Comtech AHA Corporation is a wholly owned subsidiary of Comtech Telecommuncations Corp. (NASDAQ: CMTL). For more information, visit www.aha.com.
CPU INTERFACE
PA[4:0] CSN DIR RDYN INTRN
2
DATA PORT
AHA3430
StarLite
VID PORT VOD PORT
VID SCANNER PORT 8-bits (40 MBytes/sec) VIACKN VIREQN
8-bits
VOD PRINTER PORT (40 MBytes/se VOREQN VOACKN VOEORN
comtech aha corporation
A subsidiary of Comtech Telecommunications Corporation
1126 Alturas Drive Moscow ID 83843-8331 tel: 208.892.5600 fax: 208.892.5601 www.aha.com e-mail: sales@aha.com
PB3430_1205 (c) 2005 Comtech AHA Corp.

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