Casio PCR-365A Service Manual

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Pin No. Signal Description In/Out
Status of
Power On
Status of
Power OFF
1FB3 Not used — — —
2FB4 RAM bank 3 Out High High
3FB5 RAM bank 4 Out High High
4AVSS GND — GND GND
5PGM Not used — — —
6RAM Chip select signal for RAM Out High Low
7AVREF VDD — 5 V 5 V
8RXD Receive data In High High
9TXD Send data Out High High
10WD Winder motor drive signal Out Low Low
11DI Data signal from uPD16312 In Pulse High
12DO Data signal to uPD16312 Out Pulse High
13CLK Clock signal for uPD16312 Out Pulse High
14STB Data strobe signal for uPD16312 Out Pulse High
15KC0 Key common signal (KC0) Out Pulse High
16KC1 Key common signal (KC1) Out Pulse High
17KC2 Key common signal (KC2) Out Pulse High
18KC3 Key common signal (KC3) Out Pulse High
19AD0 Address / Data signal (AD0) In/Out Pulse High
20AD1 Address / Data signal (AD1) In/Out Pulse High
21AD2 Address / Data signal (AD2) In/Out Pulse High
22AD3 Address / Data signal (AD3) In/Out Pulse High
23AD4 Address / Data signal (AD4) In/Out Pulse High
24AD5 Address / Data signal (AD5) In/Out Pulse High
25AD6 Address / Data signal (AD6) In/Out Pulse High
26AD7 Address / Data signal (AD7) In/Out Pulse High
27A8 Address signal (A8) Out Pulse High
28A9 Address signal (A9) Out Pulse High
29A10 Address signal (A10) Out Pulse High
30A11 Address signal (A11) Out Pulse High
31A12 Address signal (A12) Out Pulse High
32A13 Address signal (A13) Out Pulse High
33VSS GND — GND GND
34A14 Address signal (A14) Out Pulse High
35A15 Address signal (A15) Out Pulse High
36INIT PAD2 status — — —
37VPP PAD1 status — — —
38DSR Data set ready signal In High High
39KC4 Key common signal (KC4) Out Pulse High
40RD Output enable signal of RAM/ROM (RD) Out Pulse High
41WR Write enable signal of RAM (WR) Out Pulse High
42RA14 Address signal of ROM (Bank 0) Out High High
43ASTB Latch enable for Address decoder (ASTB) Out Pulse Low
44KI12 Key input signal (KI12) In High High
45KI13 Key input signal (KI13) In High High
46RA16 Address signal of ROM (Bank2) Out High High
47RA15 Address signal of ROM (Bank 1) Out High High
48MD Motor drive signal of printer (MD) Out Low Low
49DRW Drawer drive signal (DRW) Out Low Low
50BUZ Buzzer signal (BUZZ) Out Low Low
51FD Paper feed signal of printer (FD) Out Low Low
52HD.A Head drive signal of printer (HD.A) Out Low Low
53HD.B Head drive signal of printer (HD.B) Out Low Low
54HD.C Head drive signal of printer (HD.C) Out Low Low
55HD.D Head drive si
gnal of printer (HD.D) Out Low Low
5-2.CPU (uPD78052GC-159-3B9)

Casio PCR-365A Specifications

General

Brand	Casio
Model	PCR-365A
Category	Cash Register
Language	English