Noblex 113004620, Service Manual

Page: 15 / 58

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CPU (IC8000) Port Functions
Pin No. Pin Name Function Description
1 P9
6
/ANEX1/S
OUT
4
2 P9
5
/ANEX0/CLK4
3 P9
4
/DA
1
/TB4
IN
4 P9
3
/DA0/TB3
IN
FANCTR FAN CONTROL
5 P9
2/
TB2
IN
/S
OUT
3
6 P9
1
/TB1
IN
/S
IN
3
7 P9
0
/TB0
IN
/CLK3 BLKON
8 BYTE This pin selects width of an external databus. This input is ”L” to selected 16-bit width.
9 CNVss CNV
SS
This pin input is ”L” to select MCU operation in Single-chip.
10 P8
7
/X
CIN
P-EN
11 P8
6
/X
COUT
RST_MST MST RESET PIN
12 RESET MCU_RST Active “L”
13 X
OUT
Clock output
14 Vss GND
15 X
IN
Clock input
16 Vcc V
CC
5V Standby
17 P8
5
/NMI
18 P8
4
/INT
2
MCUIR Remote control input pin
19 P8
3
/INT
1
ARST1 Main Decode (Tvp5147) Reset pin
20 P8
2
/INT
0
CPU74
21 P8
1
/TA4
IN
/U RL-MUTE
22 P8
0
/TA4
OUT
/U PWR-0N1 Power On/Off
23 P7
7
/TA3
IN
24 P7
6
/TA3
OUT
LINE-OFF Power line-off Detect Pin
25 P7
5
/TA2
IN
/W
26 P7
4
/TA2
OUT
/W
27 P7
3
/CTS
2
/RTS
2
/TA1
IN
/V PLUG_DVI
28 P7
2
/CLK
2
/TA1
OUT
/V DPU_IN
29 P7
1
/RxD
2
/TA0
IN
/TB5
IN
SCLE IIC-SCL(EEPROM)
30 P7
0
/TxD
2
/SDA/TA0
OUT
SDAE IIC-SDA(EEPROM)
31 P6
7
/TxD
1
TXD TXD UART communication for Mcu programming Mode
32 P6
6
/RxD
1
RXD RXD UART communication for Mcu programming Mode
33 P6
5
/CLK
1
SCLK SCLK Input communication for Mcu programming Mode
34 P6
4
/CTS
1
/RTS
1
/CLKS
1
BUSY BUSY Output communication for Mcu programming Mode
35 P6
3
/TxD
0
TSDA
36 P6
2
/RxD
0
TSCL
37 P6
1
/CLK
0
P-FAIL 1 Power fail Detect1 (for 2.5V, 3.3V, 5V). It could active power protect when the volt under 2.5V.
38 P6
0
/CTS
0
/RTS
0
P-FAIL 2 Power fail Detect2 (only for 3.3V)
39 P5
7
/RDY/CLK
OUT
40 P5
6
/ALE
41 P5
5
/HOLD
42 P5
4
/HLDA
43 P5
3
/BCLK PWR-0N Power On/Off
44 P5
2
/RD
45 P5
1
/WRH/BHE TV-SYNC
46 P5
0
/WRL/WR 5VSTB 5V Standby
47 P4
7
/CS3 WRZ MCU Bus WRZ output (Active=High)
48 P4
6
/CS2 RDZ MCU Bus RDZ output (Active=High)
System Control (CPU: IC8000)
M30624