Noblex 113004620, Service Manual

Page: 16 / 58

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