Sub Cpu Port Functions - Sanyo LCD-27XA2 Service Manual

Sub CPU Port Functions (IC1801)
Pin No. Function Name
1 SCL
2 P3_7
3 Reset
4 Xout
5 Vss
6 Xin
7 Vcc
8 Mode
9 P4_5
10 P1_7
11 P1_6
12 P1_5
13 P1_4
14 P1_3
15 P1_2
16 Vref
17 P1_1
18 P1_0
19 P3_3
20 SDA
Function
I 2 C Bus Clock (For Tuner, IC101, IC3451 of Signal Unit)
TV_VGA (Not used)
Reset Input (L=Reset)
X'tal Osc. Output (10MHz)
Vss (GND)
X'tal Osc. Input (10MHz)
Vcc=3.3V
Mode / Connected to Vcc
A Detection Input -Not used-
DM Clock Output (Not used)
DM Data (Not used)
DM IR Send (Not used)
RGB ON/OFF Output (Not used)
Power4 Output
Reference for ADC (Vcc)
Timer Recording Output (H=Recording) (Not used)
D/A Control Output (H=Digital)
I 2 C Bus Data (For Tuner, IC101, IC3451 of Signal Unit)
-7-