3-2 Pin Functions
Pin No.SymbolDescription
1~2G1/G2GRID FL PORT
3VDDPULL UP(N.C)
4P/DInput for power down.
5VOL. UPInput for main volume up.
6RDS CLKClock signal output for BU1924.
7VOL. DOWNInput for main volume down.
8RMCInput for remocon data.
9RDS DATAInput for RDS data of BU1924.
10SPK LEDOutput to drive speaker LED. (At "H", it is active.)
11CLK 72131Clock signal output for 72131.
12PROTECTIONInput for detecting "PROTECTION" condition.
13STEREOInput for detecting "STEREO" condition.
14IF COUNTInput for detecting TUNER FREQUENCY.
15CLK 61516Clock signal output for M61516.
16DATA 61516Data signal output for M61516.
17KEY IN3Data input for key scan.
18KEY IN2Data input for key scan.
19KEY IN1Data input for key scan.
20FUNC_DNInput for function encoder down
21FUNC_UPInput for function encoder up
22DATA 72131Data signal output for 72131.
23CE 72131Chip enable signal output to 72131.
24CDI 49326Data signal input for CS49326.
25CLK 4112/4529/49326Clock signal output for AK4112/AK4529/CS49236.
26SDI 4112/4529/49326Data signal output for AK4112/AK4529/CS49326.
27CDI 4112Data signal input for AK4112.
28AVREFReference voltage. (Connected to +5V, Not VDD.)
29VSYNCInput for detecting synchronization signal output from BA7046
30TUNEDInput for detecting "TUNED" condition. (At "L", it is active.)
31CS 49326Chip select signal output to CS49326
32SV-DETInput for detecting S-VIDEO input signal (At "H", it is active.)
33INTERQ 49326Interrupt signal output to CS49326
34P/D4112,4529Input for AK4112/AK4529power down.
35STEP_OPTInput for selecting the frequency ranges steps of FM and AM.
( 3.4V : RDS, 5V : without RDS Receiver)
36LATCH M61516Chip enable signal output to M61516.
37GNDGROUND
38RESETInput for resetting the CPU. (At "L", it is active.)
39EXTALInput for 10MHz crystal oscillator.
40XTALOutput for 10MHz crystal oscillator.
41GNDGround.
42NCNot used!
43GNDGround.
44+5V BACK UP+5V power supply.
45VFDP-30V Supply
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