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CPU (IC8000) Port Functions
Pin No. Pin Name
49
P4
/CS1
5
50
P4
/CS0
4
51
P4
/A
3
19
52
P4
/A
2
18
53
P4
/A
1
17
54
P4
/A
0
16
55
P3
/A
7
15
56
P3
/A
6
14
57
P3
/A
5
13
58
P3
/A
4
12
59
P3
/A
3
11
60
P3
/A
2
10
61
P3
/A
1
9
62
Vcc2
63
P3
/A
(/-/D
)
0
8
7
64
Vss
65
P2
/A
(/D
/D
)
7
7
7
6
66
P2
/A
(/D
/D
)
6
6
6
5
67
P2
/A
(/D
/D
)
5
5
5
4
68
P2
/A
(/D
/D
)
4
4
4
3
69
P2
/A
(/D
/D
)
3
3
3
2
70
P2
A
(/D
/D
)
2
2
2
1
71
P2
/A
(/D
/D
)
1
1
1
0
72
P2
/A
(/D
/-)
0
0
0
73
P1
/D
/INT5
7
15
74
P1
/D
/INT4
6
14
75
P1
/D
/INT3
5
13
76
P1
/D
4
12
77
P1
/D
3
11
78
P1
/D
2
10
79
P1
/D
1
9
80
P1
/D
0
8
81
P0
/D
7
7
82
P0
/D
6
6
83
P0
/D
5
5
84
P0
/D
4
4
85
P0
/D
3
3
86
P0
/D
2
2
87
P0
/D
1
1
88
P0
/D
0
0
89
P10
/AN
/KI
7
7
3
90
P10
/AN
/KI
6
6
2
91
P10
/AN
/KI
5
5
1
92
P10
/AN
/KI
4
4
0
93
P10
/AN
3
3
94
P10
/AN
2
2
95
P10
/AN
1
1
96
AVss
97
P10
/AN
0
0
98
V
REF
99
AVcc
100
P9
/AD
/S
4
7
TRG
IN
Function
Description
ALE
MCU Bus ALE output (Active=High)
DRC_ON
BUD3
MCU 4bit DDR Direct bus
BUD2
MCU 4bit DDR Direct bus
BUD1
MCU 4bit DDR Direct bus
BUD0
MCU 4bit DDR Direct bus
DVD_SW
V
2
5V_Standby
CC
AV1_S
V
GND
SS
AMP_MUTE1
SCL
IIC-BUS SCL
SDA
IIC-BUS SDA
POWER_SW
Power Switch Input
LED1
Stand-by and Power LED Output
FAN Lock
FAN Lock
OFF TIMER_LED OFF TIMER LED output
LED2
FAIL3
Power Failure
M-AFT
Tuner AFT input pin
TSENSE
Temp. Sensor1 connected to Thermistor
KEY-IN
Key Board Input
AV
GND
SS
Vcc
AVcc
5V_Standby
-16-
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