KDC-MP732
6
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : 30625MGPA78GP (X34 : IC102)
Pin No.
Pin Name
I/O
Function
Processing Operation
1
VREF
-
Analog reference voltage
2
AVCC
-
3
LX DATA S
I
Data from slave unit
4
LX DATA M
O
Data to slave unit
5
LX CLK
I/O
LX-BUS clock
6
WIRED REMO
I
External display remoter controller
7
LX MUTE
I
Mute request from slave unit
H : MUTE ON, L : MUTE OFF
8
AUD SDA
O
E-VOL data
SPI communication
9
AUD SEL
O
E-VOL control
SPI communication
10
AUD SCL
O
E-VOL clock
SPI communication
10
DSP_SCL
O
DSP clock output terminal
SPI communication
11
DAC RST
O
DAC reset
L : DAC RESET
11
NC
O
Not used
L-output for models without DSP
12
NC
-
Not used
13
BYTE
-
GND
14
CNVSS
-
15
XCIN
I
Clock
32,768kHz
16
XCOUT
I
Clock
32,768kHz
17
RESET
I
Reset
18
XOUT
-
Clock
12MHz
19
VSS
-
GND
20
XIN
-
Clock
12MHz
21
VCC1
-
22
NMI
I
Not used
23
PANEL DET
I
Panel detection
H : No panel, L : Panel exists
24
RDS CLK
I
RDS decoder clock
24
NC
O
Not used
L-output for models without RDS/RBDS
25
LX REQ S
I
Communication request from slave unit
26
PON AM
I/O
AM power supply control
AM in operation : H, AM not in operation : HI-Z
27
LX REQ M
O
Communication request to slave unit
28
TUN IFC OUT
I
Front-end IFC out
H : Station exists, L : No station
29
NC
O
Not used
30
RDS AFS M
I/O
Time constant switching when noise detected
Refer to Truth Value Table
r
30
NC
O
Not used
L-output for models without RDS/RBDS
31
RDS QUAL
I
RDS decoder QUAL
31
NC
O
Not used
L-output for models without RDS/RBDS
32
RDS DATA
I
RDS decoder DATA
32
NC
O
Not used
L-output for models without RDS/RBDS
33
PWIC BEEP
O
Beep
34
TUN SCL
I/O
Front-end I2C clock
35
TUN SDA
I/O
Front-end I2C data
36
SYS DATA
O
Inside-panel communication data
MAX 500kbps
