(X14-) IC1 : µ-COM
PORT No. PORT NAME I/O FUNCTION OPERATING CONDITION
1PANEL I Panel on/off detection. "L" : Panel on. "H" : Panel off.
2 L CE O LCD driver chip enable. -
3L RES O LCD driver reset. -
4 AVSS - GND. -
5R DATA I RDS data. -
6 R QUAL I RDS signal. -
7AVREF 1 I Reference voltage. -
8 IC2 SEL 1 I To GND. -
9IC2 SEL 0 I To GND. -
10 - - No connection. -
11 L DATA L I LCD driver data. -
12 L DATA S O LCD driver data. -
13 L CLK O LCD driver clock. -
14,15 - - No connection. -
16 DATA C I Changer data. -
17 DATA H O Changer data. -
18 CH CLK IChanger clock. -
19-26 - - No connection. -
27 MOTOR O Cassette motor on/off. -
28 FF/REW I FF/REW. -
29-31 - - No connection. -
32 SD I Tuner signal detection. "H" : Tuner signal exists.
"L" : Tuner signal does not exist.
33 VSS 1 - GND. -
34 - - No connection. -
35 PLL CLK O PLL clock. -
36 PLL DATA I/O PLL data. -
37 AM+B O AM power supply. -
38 FM+B O FM power supply. -
39 IC2 DATA I/O E-volume data. -
40 IC2 CLK O E-volume clock. -
41 AFC O FM noise detection time constant switch. -
42 MUTE O Mute control. -
43 AMP MUTE O Power IC (IC4) mute. -
44 - - No connection. -
45 CH CON O Changer control. -
46 REC H O Request to head unit. -
47 - - No connection. -
48 SVR O Power IC (IC4) discharge control. -
49 AMP STBY O Power IC (IC4) stand-by. -
50 BEEP O Buzzer. -
51,52 - - No connection. -
53 P.CONT O Power control on/off. -
54 ACC DET I ACC detection. -
55 B.U. DET I Back-up detection. -
56 P.ON O Power on/pff. -
57 ILL O Illumination on/off. -
58 FWD/REV I FWD/REV detection. -
59 - - No connection. -
60 RESET I System reset. -
61 SEL 1 I Destination switch. -
62 R CLK I RDS clock. -
63 REQ C IRequest from changer. -
64 PACK IN ICassette tape Pack-in detection.
65 KEY-REQ I Key detection. -
-
66 SEL 0 I Destination switch. -
67 VSS 0 - GND. -
68 VDD 1 - VDD. -
69 X2 - Main system clock. -
70 X1 - Main system clock. -
71 IC - GND. -
72 XT2 - No connection. -
73 XT1 - VDD. -
74 VDD 0 - VDD. -
75 AVREF 0 I Reference voltage. -
76 S METER I Signal meter. -
77 PHONE I Tel/Navi mute. Tel mute : Less than 1V.
Navi mute : More than 2.5V.
78 NOISE I FM noise detection. -
79 AV CONT OA/D refernce voltage control. -
80 --
No connection. -
