— 54 —
Pin Name
Function
I/O
Description
1
VHOLD
VHOLD at CAPTION
IN
CAPTION
2
HLF
HLF at CAPTION
IN
CAPTION
3
DA1/SCL3/RXD2
IIC SCL
OUT
IIC Bus SCL (Tuner, Audio Control, AV SW)
4
DA0/SDA3/TXD2
IIC SDA
I/O
IIC Bus SDA (Tuner, Audio Control, AV SW)
5
TB2IN/DIGR0
OSD RED 0
OUT
OSD Output Red (Low level)
6
P91/TB1IN
–
–
Not used
7
P90/TB0IN
PWR SW IN
IN
Power ON/OFF Detect, Switch On : Low
8
BYTE
BYTE
IN
3.3V Pull Up
9
CNVss
IN
Normal : Low, Writing to Flash Memory : High
10
Xcin/DIGG0
OSD GREEN 0
OUT
OSD Output Green (Low level)
11
Xcout/DIGB0
OSD BLUE 0
OUT
OSD Output Blue (Low level)
12
RESET
RESET 3.3V
IN
Normal : 3.3V, Writing to Flash Memory : Low -> 3.3V
13
Xout
Main Clock Output
14
Vss
GND
GND
15
Xin
Main Clock Input
16
Vcc
3.3V
3.3V
17
OSC1/OSCHLF
OSD_CLK_IN
IN
OSD Clock Input
18
OSC2
OUT
Not used
19
P83/INT1
RC
IN
RC Input
20
P82/INT0
OUT
Not used
21
OUT1
OSD_BLK
OUT
OSD Blanking Output
22
OUT2
OSD-HALF
OUT
OSD Half Tone Output
23
P77/HC1
OUT
Not used
24
P76/TA3OUT
FAN CONTROLPWM
Not used
25
P75/HC0
IN
Not used
26
P74/TA2out
OUT
Not used
27
P73/CTS2/RTS2
NV MEMORY SW
OUT
NV Memory Access : High
28
P72/SCL2/CLK2
IIC SCL/SCLK
OUT
IIC Bus SCL (Panel, Decoder, Scaler, A/D Converter)
29
P71/SCL1/RXD2
IIC SCL
I/O
IIC Bus SCL (N.V., Factory PC)
30
P70/SDA1/TXD2
IIC SDA
OUT
IIC Bus SDA (N.V., Factory PC)
31
P67/SDA2
IIC SDA/SDATA
I/O
IIC Bus SDA (Panel, Decoder, Scaler, A/D Converter)
32
R/DIGR1
OSD RED output
OUT
OSD Output Red (Middle level)
33
G/DIGR1
OSD GREEN output
OUT
OSD Output Green (Middle level)
34
B/DIGR1
OSD BLUE output
OUT
OSD Output Blue (Middle level)
35
P63/TxD0
DM SOUT/TXD
OUT
Serial Output to US Digital, For writing to Flash Memory
36
P62/RxD0
DM SIN/RXD
IN
Serial Input to US Digital, For writing to Flash Memory
37
P61/CLK0
DM CLK/SCLK
IN
Serial Clock from US Digital, For writing to Flash Memory
38
P60/CTS0/RTS0
BUSY
OUT
For writing to Flash Memory
39
P57/RDY/CLKout
IN
Not used
40
P56/ALE
STATUS
IN
For factory Status
41
P55/HOLD
PULL-DOWN GND
Pull down to Ground, For writing to EPM Flash Memory
42
P54/HLDA
DM_OUT
OUT
Digital Module Output (CS)
43
P53/BCLK
AV SW4
OUT
AV SW4
44
P52/RD
AV SW3
OUT
AV SW3
45
P51/WRH/BHE
OUT
Not used
46
P50/WRL/WR/CE
Clip Enable
OUT
Chip Select for writing to Flash Memory
47
P47/CS3
AV SW2
OUT
AV SW2
48
P46/CS2
LVDS SW
OUT
LVDS SW
49
P45/CS1
PWR_GO
OUT
Power Control TV-GO, Power ON : High
50
P44/CS0
OUT
Not used
System Control (CPU : IC801)
CONTROL PORT FUNCTIONS