Microcomputer's Terminal Description - Kenwood KDC-CX85 Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

UPD 7805GCB82T : IC1 (X13-9790-00)
Pin Pin Name I/O
1 P15/AN15 O
2 P16/AN16 O
3 P17/AN17 O
4 AVss -
5 P130/ANO0 O
6 P131/ANO1 O
7 AVref1 I
8 P70/SI2/RXD I
9 P71/SO2/TXD O
10 P72/SCK2/ASCK I/O
11 P20/SI1 I
12 P21/SO1 O
13 P22/SCK1 I/O
14 P23/STB O
15 P24/BUSY O
16 P25/SI0/SB0/SDA0 I
17 P26/SO0/SB1/SDA1 O
18 P27/SCK0/SCL I/O
19 P40/AD0 O
20 P41/AD1 O
21 P42/AD2 O
22 P43/AD3 O
23 P44/AD4 O
24 P45/AD5 O
25 P46/AD6 O
26 P47/AD7 O
27 P50/A8 O
28 P51/A9 O
29 P52/A10 O
30 P53/A11 O
31 P54/A12 O
32 P55/A13 O
33 VSS -
34 P56/A14 O
35 P57/A15 O
36 P60 O
37 P61 O
38 P62 O
39 P63 O
40 P64 O
Function
Not used.
Not used.
Not used.
A/D converter reference ground terminal
RSTOUT Reset output
REQH1 Communication request output to CH1
AVref1 A/D converter reference power terminal
DATAC1 Data input from CH1
DATAH1 Data output to CH1
HCLK1 Communication clock input/output to/from CH1
DATAH0 Data input from H/U
DATAC0 Data output to H/U
HCLK0 Communication clock input/output to/from H/U
REQC0 Communication request output to H/U
REQH2 Communication request output to CH2
DATAC2 Data input from CH2
DATAH2 Data output to CH2
HCLK2 Communication clock input/output to/from CH2
CHCONO1 Control output to CH1
CHCONO2 Control output to CH2
RELAY1 Control output to RELAY1
RELAY2 Control output to RELAY2
MSTOP BU instant dip detection output to CH1
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
VSS Connected to GND.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
Not used.
KDC-CX85/CPS85
Description Processing Operation
H: Reset
L: Request
L: Communication request
L: Communication request
H: CH1 control output
H: CH2 control output
H: AUX L: CH1
H: CH2 L: CH1
H: BU instant dip
detection output
3