Sharp AR-5132 Service Manual page 40

5
CPU pin signals
Pin No. Port
1 P90
2 P91
3 P92
4 P93
5 P94
6 P95
7 P96
8 P97
9 VCC
10 P100
11 P101
12 P102
13 P103
14 P104
15 P105
16 P106
17 P107
18 P80
19 P81
20 P82
21 P83
22 P84
23 P85
24 P86
25 P87
26 VSS
27 P120
28 P121
29 P122
30 P123
31 P124
32 P125
33 P126
34 P127
35 VSS
36 D0
37 D1
38 D2
39 D3
40 D4
41 D5
42 D6
43 D7
44 VCC
45 A0
46 A1
47 A2
48 A3
49 A4
50 A5
51 A6
52 A7
53 VSS
54 A8
55 A9
56 A10
Signal name In/Out
TXD SUB OUT
RXD SUB IN
TXD ICU OUT
RXD ICU IN
RES SUB OUT
RES OPE OUT
RES ICU OUT
RES PRT OUT
VCC
TXD OPE OUT
RXD OPE IN
TXD PRT OUT
RXD PRT IN
— —
— —
TXD RIC OUT
RXD RIC IN
— —
— —
— —
— —
— —
PRTCHin IN
— —
— —
VSS
DSR SUB IN
DSR ICU IN
DSR OPE IN
DSR PRT IN
— —
DSR RIC IN
CTS RIC IN
READY IN
VSS
D0
D1
D2
D3
D4
D5
D6
D7
VCC
A0
A1
A2
A3
A4
A5
A6
A7
VSS
A8
A9
A10
H/L
L Serial data output to SUB CPU
L Serial data input from SUB CPU
L Serial data input to ICU
L Serial data output from ICU
L Reset signal to SUB CPU
L Reset signal to the operation panel
L Reset signal to ICU
L Reset signal to the printer
Power 5V
L Serial data output to the operation panel
L Serial data input from the operation panel
L Serial data output to the printer
L Serial data input from the printer
— Not used.
— Not used.
L Serial data output to RIC
L Serial data input from RIC
— Not used.
— Not used.
— Not used.
— Not used.
— Not used.
L Printer PWB detection signal
— Not used.
— Not used.
Power GND
H Request signal from SUB
H Request signal from ICU
H Operation panel request signal
H Printer request signal
— Not used.
L DSR from RIC (Power confirmation signal)
L CTS for RIC (Send request signal)
H Polygon motor ready signal
Power GND
Data signal
Data signal
Data signal
Data signal
Data signal
Data signal
Data signal
Data signal
Data signal
Address signal
Address signal
Address signal
Address signal
Address signal
Address signal
Address signal
Address signal
Power GND
Address signal
Address signal
Address signal
9 – 9
Specification