6
KDC-MP628/MP7028/MP728
MP8029/W7031/W7031Y
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : IC102 (X34- : ELECTRIC UNIT)
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
11
DAC RST
O
DAC reset
L : DAC RESET
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
23
PANEL DET
I
Panel detection
H : No panel, L : Panel exists
24
RDS CLK
I
RDS decoder clock
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
RDS AFS L
I/O
Time constant switching when noise detected
Refer to Truth Value Table (RDS AFS)
30
RDS AFS M
I/O
Time constant switching when noise detected
Refer to Truth Value Table (RDS AFS)
31
RDS QUAL
I
RDS decoder QUAL
32
RDS DATA
I
RDS decoder DATA
33
PWIC BEEP
O
Beep
34
TUN SCL
I/O
Front-end I2C clock
MAX 400kHz
35
TUN SDA
I/O
Front-end I2C data
36
SYS DATA
O
Inside-panel communication data
MAX 500kbps
37
VCC1
-
38
PAN DATA
I
Inside-panel communication data
MAX 500kbps
39
VSS
-
40
SYS REQ
O
Communication request from system
µ
-com
41
PAN REQ
I
Communication request from panel
42
SDA
I/O
E2PROM I2C data
MAX 100kHz
