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AHA3422A-033PQC

Description
16 MBYTES/SEC LOSSLESS DECOMPRESSOR IC
File Size179KB,4 Pages
ManufacturerETC1
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AHA3422A-033PQC Overview

16 MBYTES/SEC LOSSLESS DECOMPRESSOR IC

comtech
aha
corporation
PRODUCT BRIEF*
AHA3422 StarLite
16 MBYTES/SEC LOSSLESS
DECOMPRESSOR IC
AHA3422 is a high speed lossless
decompression coprocessor IC for the hardcopy
systems on many standard platforms, including the
PCI Bus. The device offers a low cost
decompression only solution for under 30 ppm
printers or 50 ppm copiers at 1200 dpi.
High speed decompression, flexible interfaces
and advanced banding support make this a unique
solution for Raster Image Processing (RIP)
controller designs. Advanced banding support
handles blank, uncompressed and compressed
bands. Scan line and record length counters
accommodate various print resolutions and band
buffer sizes.
Software simulation and an analysis of the
algorithm for printer and copier images of various
complexity are available for evaluation.
PA[3]
PA[2]
PA[1]
PA[0]
TEST0
VOACKN
VSS
VDD
NC
VOD[7]
VOD[6]
VOD[5]
VOD[4]
VOD[3]
VSS
VDD
VOD[2]
VOD[1]
VOD[0]
VOEORN
VOREQN
D[31]
VSS
VSS
VDD
VDD
D[30]
D[29]
D[28]
D[27]
D[26]
D[25]
FEATURES
PERFORMANCE:
• 16 MBytes/sec data rate
• 132 MBytes/sec burst data rate over a 32-bit
data bus
• 33 MBytes/sec burst rate, 16 MBytes/sec
sustained synchronous 8-bit video out port
• Average 15 to 1 compression ratio for 1200 dpi
bitmap image data
• Advanced banding support
FLEXIBILITY:
VDD
PA[5]
VSS
PA[4]
NC
VOEOTN
PROCMODE[1]
PROCMODE[0]
CSN
VDD
VSS
DIR
RSTN
PD[7]
PD[6]
PD[5]
VDD
VSS
PD[4]
PD[3]
PD[2]
PD[1]
PD[0]
VDD
VSS
RDYN
VDD
*I
*I
*I
VDD
VSS
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
AHA3422A-033 PQC
YYWWD - COUNTRY OF ORIGIN
LLLLL
64
63
62
61
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
VDD
VSS
D[24]
D[23]
D[22]
D[21]
D[20]
D[19]
D[18]
D[17]
D[16]
D[15]
VDD
VSS
VDD
VDD
VSS
CLOCK
VDD
VSS
VSS
TEST1
D[14]
D[13]
D[12]
VDD
VSS
D[11]
D[10]
D[9]
D[8]
D[7]
• Big Endian or Little Endian; 32 or 16-bit bus
width and data bit/byte reordering for duplex
printing support
• Programmable Record Length, Record Count and
Scan Length Registers may be prearmed
• Scan line length up to 2K bytes
• Interfaces directly with various Motorola 68xxx
and Cold FIRE and Intel i960 processors
• Pass-through mode passes raw data through the
decompression engine
SYSTEM INTERFACE:
96
95
94
93
92
91
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
• Single chip decompression solution–no external
SRAM required
• Four internal 16 × 32-bit FIFOs
• Maskable interrupts
• Tristatable outputs to facilitate board level testing
OTHERS:
Low power modes
Optional counter checks errors in decompression
Software emulation program available
128 pin quad flat package
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
*I
*I
*I
*I
*I
INTRN
VSS
VDD
DRIVEN
SD
DOACKN
VDD
DIACKN
VDD
VSS
VDD
DOREQN
NC
DIREQN
NC
NC
D[0]
VSS
VSS
VDD
VDD
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
APPLICATIONS
• Digital copiers
• Printer controllers
• Multifunction printers and copiers
NOTES: NC = No Connect; *I = Connect to VDD or VSS
YYWWD = DATE CODE; LLLLL = LOT NUMBER
*Request the AHA3422 Product Specification for complete details.
comtech
aha
corporation

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