Casio PCR-262 Service Manual

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5. CIRCUIT EXPLANATION
5-1. CPU (IC3: uPD780058BGC124-8BTA)
5-1-1. Pin Assignment
P15/ANI5 1 60 RESET
P16/ANI6
2 59 P127/RTP7
P17/ANI7
3 58 P126/RTP6
AV
SS 4 57 P125/RTP5
P130/ANO0
5 56 P124/RTP4
P131/ANO1
6 55 P123/RTP3
AV
REF1 7 54 P122/RTP2
P70/SI2/RxD0
8 53 P121/RTP1
P71/SO2/TxD0
9 52 P120/RTP0
10 51 P37
P20/SI1
11 50 P36/BUZ
P21/SO1
12 49 P35/PCL
P22/SCK1
13 48 P34/TI2
P23/STB/TxD1
14 47 P33/TI1
P24/BUSY/RxD1
15 46 P32/TO2
P25/SI0/SB0
16 45 P31/TO1
P26/SO0/SB1
17 44 P30/TO0
P27/SCK0
18 43 P67/ASTB
P40/AD0
19 42 P66/WAIT
P41/AD1
20 41 P65/WR
P72/SCK2/ASCK
P42/ AD2
21
P14/ ANI4
P43/ AD3
22
P13/ ANI3
P44/ AD4
23
P12/ ANI2
P45/ AD5
24
P11/ ANI1
P46/ AD6
25
P10/ ANI0
P47/ AD7
26
AV REF0
P50/ A8
27
V DD0
P51/ A9
28
XT1/ P07
P52/ A10
29
XT2
30
IC (V PP )
P54/ A12
31
X1
P55/ A13
32
X2
V
SS1
33
V DD1
P56/ A14
34
VSS0
P57/ A15
35
P05/ INTP5
P60
36
P04/ INTP4
P61
37
P03/ INTP3
P62
38
P02/ INTP2
P63
39
P01/ INTP1/ TI01
P64/ RD
40
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62
61
P00/ INTP0/ TI00
P53/ A11

Casio PCR-262 Specifications

General

Brand	Casio
Model	PCR-262
Category	Cash Register
Language	English