6
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth
Value Table
Processing / Operation / Description
1
REMO
I
External display remote control input
Panel remote control input
Panel attached: Pull-up
Panel detached: Pull-down
2
LX REQ M
O
Communication request to slave unit
3
LX MUTE
I
Communication request from slave unit
H: Mute ON, L: Mute OFF
4
LX CON
O
Start-up request to slave unit
H: Slave unit ON, L: Slave unit OFF
5
LX RST
O
Forced reset to slave unit
H: Reset, L: Normal condition
6
BYTE
-
7
CNVSS
-
8
XCIN
-
Sub clock
32.768kHz
9
XCOUT
-
Sub clock
32.768kHz
10
RESET
-
11
XOUT
-
Main clock
12.00MHz
12
VSS
-
13
XIN
-
Main clock
12.00MHz
14
VCC1
-
15
NMI
-
16
LX REQ S
I
Communication request from slave unit
17
RDS CLK
I
RDS decoder clock input
18
PANEL DET
I
Detection of panel connector detached/
attached
H: Panel detached, L: Panel attached
19
PON AM
I/O
AM power supply control
AM reception: H, No AM reception: Hi-Z
20
TUN IFC OUT
I
Front-end IFC-OUT input
H: Station found, L: No station
21
RDS AFS M
I/O
Noise detection time constant SW
22
RDS QUAL
I
RDS decoder QUAL input
23
RDS DATA
I
RDS decoder data input
24
USB SYNC
O
Clock output for SW-REG
25
NC
-
Not used
Output L fi xed
26
PWIC BEEP
O
Beep output
27
TUN SCL
I/O
Front-end I2C clock input/output
MAX400kHz
28
TUN SDA
I/O
Front-end I2C data input/output
29
VFD SYS DATA
I/O
VFD data input/output
30
VFD PAN DATA
I
VFD INT input
31
VFD CL
O
VFD clock output
125kHz
32
VFD BLK
O
VFD reset
H: Reset cancelled, L: Reset
Momentary power down or Panel detached or 11
minutes after ACC OFF: L
33
S SYS DATA
O
System µ-com
→
SOC data
34
S SOC DATA
I
SOC
→
System µ-com data
