6
KDC-MP828/W7531/W7531Y/W8531
/W8531Y/X789/X8529/X889
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
Communication request to slave unit
H : Station exists, L : No station
Time constant switching when noise detected
Refer to Truth Value Table (RDS AFS)
Time constant switching when noise detected
Refer to Truth Value Table (RDS AFS)
MAX 400kHz
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
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299