KDC-MP4032
5
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-com: IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth Value
Processing / Operation / Description
Table
1
REMO
I
Remote control signal input
Detects pulse width
2
LX MUTE
I
Mute request from slave unit
H: MUTE ON, L: MUTE OFF
3
AUD SDA
O
E-VOL data output
4
AUD SEL
O
E-VOL control
5
AUD SCL
O
E-VOL clock output
6
BYTE
-
7
CNVSS
-
8
XCIN
I
9
XCOUT
I
10
RESET
-
11
XOUT
-
12
VSS
-
13
XIN
-
12.0MHz
14
VCC1
-
15
NMI
I
Not used
16
CN DET
I
Panel communication detection
H: PANEL detached, L: PANEL attached
17
NC
-
Not used
Outputs L fixed
18
LX REQ S
I
Communication request from slave unit
19
PON AM
I/O
AM power supply control
H: When AM, Hi-z: When not AM
20
LX REQ M
O
Communication request to the slave unit
21
TUN IFC OUT
I
Front-end IFC out input
H: Station found, L: Station not found
22~25
NC
-
Not used
Outputs L fixed
26
PWIC BEEP
O
Beep output
27
TUN SCL
I/O
Front-end I2C clock input/output
MAX 400kHz
28
TUN SDA
I/O
Front-end I2C data input/output
29
VFD DATA
I/O
VFD data input/output
Data input/output
30
VFD INT
I
VFD INT input
INT input
31
VFD CLK
O
VFD clock output
Normal: 125kHz, Low consumption mode: 62.5kHz
H: Clear reset, L: RESET
32
VFD RST
O
VFD driver reset
L: Momentary power down, panel detached, or 11 minutes
after ACC OFF
33
SDA ROMCOR SDA I/O
E2PROM I2C data input/output for
ROM correction
34
SCL ROMCOR SCL
I/O
E2PROM I2C clock output for
ROM correction
35
PON PANEL
I/O
Panel 5V control
L: ON, Hi-z: Momentary power down, panel detached,
or 11 minutes after ACC OFF
36
DSI
I/O
DSI/EJECT LED control
Hi-z: OFF, Pulse drive: When PANEL detached,
H: ILLUMI ON or PANEL OPEN (when Power ON)
37,38
NC
-
Not used
Outputs L fixed
39
EPM
I
FLASH EPM input
