Sony RM-AV2000T Service Manual page 21

Integrated remote commander
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• IC2 (µPD65012)
Pin No.
Pin Name
I/O
1 to 8
ID7 to ID0
I/O
IENN/IWIN
9 to11
IRDN.
12
GND
13 to 20
IP30 to IP37
21 to 28
IP40 to IP47
29
KINT
30 to 32
IP50 to IP52
33
GND
34
V
DD
KINT
35 to 38
IP53 to IP56
39
REC
RDO.WTO
40 to 42
OCE
43 to 50
OD0 to OD7
I/O
51 to 52
AD0 to AD1
53
GND
54 to 59
AD2 to AD7
60 to 63
AD8 to AD11
64
OUTP
65
RMO
66
OP60
67
OP61
68
OP62
69
OP63
70
OP64
71
GND
72
V
DD
73
OP65
74
OP66
75
OP67
76
CLR
77
ICLK
78
RES
79
INT
80
IALE
Data transfer between µPD65012 and microprocessor.
I
Control input from microprocessor.
GND terminal.
I
Key scan input.
I
Key scan input.
I
Not used.
GND terminal.
Positive power supply terminal.
I
Not used.
I
Remote control signal received input.
O
External memory control output.
Data transfer between µPD65012 and external memory.
O
Terminals to which external memory is connected. Lower address (ADO to AD1)
GND terminal.
O
Terminals to which external memory is connected. Lower address (AD2 to AD7)
O
Terminals to which external memory is connected. Upper address (AD8 to AD11)
O
Not used.
O
Remote control signal output.
O
Remote control signal receiver block ON/OFF output.
O
SRAM IC3 (W24257S) ADD and IC8 (LH5359PA) ADD.
O
SRAM IC3 (W24257S) ADE and IC8 (LH5359PA) ADE.
O
Selector SRAM IC3 (W242575S) or ROM IC8 (LH5359PA)
O
EL control output. (Dark)
GND terminal.
Positive power supply terminal.
O
Terminals to which external memory is connected. Upper address. (AD12)
O
EL control output. (Bright).
O
Buzzer
I
GA reset input.
I
GA clock input.
I
Not used.
O
Microprocessor interrupt output.
I
Address latch enable input.
Pin Function
— 25 —

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