Sharp FO-5700, Service Manual, Page: 62 / 140

FO-5700U
5 – 18
(12) JBIG block
When it sends FAX by the JBIG compression form, the JBIG compres-
sion of the image data and JBIG expansion are done with QM-CODER
LSI of IC23 (M65761).
PD0-31
IMAGE DATA • CONTEXT I/F
(=CX0-11
PEUPE*
PDRQ
PDAK*
PDRD*
PDWR*
PRDY*
(=XRDY*)
PTIM*
(=XTIM*)
PXCK*
PXCKO*
SVID*
(=SPIX*)
RVID*
(=RPIX*)
XCLK*
XWAIT*
RESET*
A0-3
BHE*
WR*
RD*
D0-15
DMARQ
DMAAK*
INTR
BUS16
MCLK
TEST
CS*
HOST BUS I/F
QM-CODER
PROBABILITY PRESUMPTION TABLE ROM
CONTEXT TABLE RAM
SWITCH
CONTEXT GENERATE
TYPICAL PREDICTION
LINE MEMORY
PIXEL DATA
CONTEXT DATA
QM-CODER LSI
GND
1
D7
PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 PD8 PD9 PD10 VCC GND PD11 PD12 PD13 PD14 PD15 PD16 PD17 PD18 PD19 PD20 PD21 VCC GND PD22 PD23 PD24
D6 D5 D4
GND
VCC
D3 D2 D1 D0
GND
VCC
RESET*
A3 A2 A1 A0
BHE*
CS*
MCLK
GND
VCC WR*
RD*
DMAAK*
BUS16
DMARQ*
INTR
XCLK*
GND
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
PD25 31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PD25
PD26
PD27
PD28
PD29
PD30
PD31
PDRQ
VCC
GND
PDRD*
PDWR*
PDAK*
RVID*
PRDY*
SVID*
PTIM*
PXCK*
XWAIT*
VCC
51 52 53 54 55 56 57 58 59 60 61 62 63 64 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
VCC
GND
D8
D9
D10
D11
VCC
GND
D12
D13
D14
D15
VCC
GND
PXCKO*
TOUT2
TOUT1
TEST1
TEST0
VCC
IC23: VHiM65761FP-1(M65761FP)