-42-
1 S Reset Open -
2 SCL IIC SCL Active “L” -
3 SDA IIC SDA Active “L” -
4 D0 CARD_IN L: CARD H: No CARD IN
5 D1 VIEWER_ON L: VIEWER Unit exist IN
6 D2 SCDT1 DVI Sync. detection H: DVI IN
7 D3 TURBO_LED H: on L: off OUT
8 VSS GND - -
9 D4 WARNING_LED H: on L: off OUT
10 D5 LAMPREP_LED H: on L: off OUT
11 D6 READY_LED H: on L: off OUT
12 D7 Not used Fixed “L”OUT
13 VDD 5 V Vcc -
14 CS2 Chip Select 2 Fixed “L”-
15 CS1 Chip Select 1 Fixed “L”-
16 CS0 Chip Select 0 Fixed “H” -
Pin No. Name Function Action I/O
● IIC Bus I/O Expander (IC1851) Port Functions
● IIC Bus I/O Expander (IC2181) Port Functions
1 R Reset Fixed “H”
2 SCL IIC SCL Active “L”
3 SDA IIC SDA Active “L”
4 AO7 FAN_CONT_1 0xFFh:Min 0x00h:Max
5 AO8 FAN_CONT_2 0xFFh:Min 0x00h:Max
6 AO9 EDIDEN L: H8 side H: PC side
7 AO10 AUDIOMUTE L: Mute Off H: Mute On
8 AO11 PWRDN0 AD Power down (L:DVI/MCI H:PC)
9 AO12 DCOM_OFF Digital Comb Filter Usage H: used L: No used
10 VrefL D/A converter lower ref. voltage Connect to GND
11 VrefU1 D/A converter upper ref. voltage (CH7~CH12) Vcc
12 GND GND GND
13 VrefU2 D/A converter upper ref. voltage (CH1~CH6) Vcc
14 AO1 VOL_CNT Control sound output volume, L: minimum
15 AO2 Not used Fixed L
16 AO3 MOUSE Air mouse On/Off H: On L: Off
17 AO4 MOUSE_RESET Air mouse CPU reset Reset start: H->L->H
18 AO5 TURBO + Turbo motor control (+) L: On
19 AO6 TURBO - Turbo motor control (-) L: On
20 Vcc Digital power supply
21 Vdd Analog power supply
22 CS2 Chip Select 2 Fixed “H”
23 CS1 Chip Select 1 Fixed “H”
24 CS0 Chip Select 0 Fixed “L”
Pin No. Name Function Action
● IIC Bus DA Converter (IC1831) Port Functions
Control Port Functions
1 S Reset Open -
2 SCL IIC SCL Active “L”-
3 SDA IIC SDA Active “L”-
4 D0 MOD 2 NTSC4.43: H else: L OUT
5 D1 MOD 1 Fixed “L”OUT
6 D2 PNR NTSC, NTSC4.43: L else: H OUT
7 D3 NTPL 2 PAL-M, PAL-N: H else: L OUT
8 VSS GND - -
9 D4 NTPL 1 PAL, PAL-N: H else: L IN
10 D5 Not used Fixed “L”OUT
11 D6 C -SWIN Component signal detection (L: Component) IN
12 D7 S _ SW S signal detection (L: S-Input) IN
13 VDD 5 V Vcc(5V) -
14 CS2 Chip Select 2 Fixed “L”-
15 CS1 Chip Select 1 Fixed “L”-
16 CS0 Chip Select 0 Fixed “L”-
Pin No. Name Function Action I/O
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