5
KDC-8026/MP825
KDC-MPV8025/W7027
SYSTEM MICROPROCESSOR : UPD703030GC042 (X34-304 : IC1)
Pin No.
Pin Name
I/O
Description / Processing Operation
Fig.
1
PLL DATA
I/O
Data input/output terminal for Tuner front-end
2
AM+B
I/O
AM+B (AM operation : H)
3
(FM+B)
O
FM+B (FM operation : H, Last FM : H with RDS,RBDS model)
4PAN E2P DATA
I/O
Variable illumination D/A converter, E2PROM DATA terminal
5PAN E2P CLK
I/O
Variable illumination D/A converter, E2PROM CLK terminal
6
EVDD
-
VDD 5V
7
EVSS
-
GND
8
AFS
O
Time constant switching for noise detection (FM seek, AF search, AUTO 0 : L, Receiving : H)
9
BEEP
O
BEEP audio output terminal
10
REMO
I
Remote control input terminal
11
P MUTE
O
Audio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L)
12
SVR
O
Audio power IC SVR discharge circuit control terminal
13
IC2 SDA
I/O
CD mechanism, IC2, IC5, ROM correction DATA line
14
IC2 CLK
I/O
CD mechanism, IC2, IC5, ROM correction CLOCK line
15
P STBY
O
Audio power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L)
16
P CON
I/O
Power control terminal (POWER ON : H, POWER OFF, ALL OFF : Hi-Z)
17
DIMMER CONT
O
Dimmer control terminal (W-LED only : Pulse control F=1KHz, Normal : H)
18
TEST
-
NC (GND)
19
TYPE2
I
Destination select terminal
20
MUTE
O
MUTE output terminal (ON : OPEN, OFF : L)
21
PRE MUTER
O
PREOUT (Rch) muting control terminal
22
PRE MUTEL
O
PREOUT (Lch) muting control terminal
23
BU DET
I
Momentary power dropped detection terminal (No Backup, Momentary power dropped : H, Backup : L)
24
ACC DET
I
ACC detection terminal (With ACC : L, Without ACC : H)
25
SW5V
I/O
SW5V control terminal (OFF : H, ON : L)
26
EXT AMP CONT
O
External amplifier control terminal
27
DIMMER
I
Small lamp detection terminal (ON : L, OFF : H)
28
ANT CONT
I/O
Antenna control/ Destination select terminal (TUNER ON : H)
29
P ON
I/O
SW14V, SW5V control terminal (POWER ON : H, POWER OFF : Hi-Z)
30
ILL ON
I/O
FL, illumination control terminal (ON : H, OFF : Hi-Z)
31
RESET
I
Reset input terminal
32,33
XT1/XT2
-
Sub clock (32.768kHz)
34
REGC
-
Connect to 1
µF capacitor
35,36
X2/X1
-
Main clock (20MHz)
37
VSS
-
GND
38
VDD
-
AVR 5V
39
CLKOUT
-
NC
40
LX REQ M
O
Communication request to external slave unit (Request : L)
41
LX MUTE
I
Mute request from external slave unit (MUTE : H)
MICROCOMPUTER'S TERMINAL DESCRIPTION
