6
KDC-MP632U
KDC-W6534U/UY/X590/X7533U
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-COM: IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth
Processing / Operation / Description
Value 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
-
Not used
16
CN DET
I
Panel communication detection
H: Panel detached, L: Panel attached
(Flip-down panel model only)
17
RDS CLK
I
RDS decoder clock input
18
LX REQ S
I
Communication request from slave unit
19
PON AM
I/O AM power supply control
H: Receiving AM, Hi-z: No AM
20
LX REQ M
O
Communication request to slave unit
21
TUN IFC OUT
I
Front-end IFC-OUT input
H: Station found, L: No station
22
NC
-
Not used
L fixed
23
RDS AFS M
I/O Noise detection time constant switching
q
Refer to the truth value table
24
RDS QUAL
I
RDS decoder QUAL input
25
RDS DATA
I
RDS decoder data input
26
PWIC BEEP
O
Beep output
I/O Front-end I2C clock input and output
MAX400kHz
I/O Front-end I2C data input and output
INT input
VFD clock output
Normal: 125kHz, Low consumption mode: 62.5kHz
H: Canceling reset, L: Reset
VFD driver reset
L: Momentary power down, panel detached or 11
minutes after ACC OFF
E2PROM I2C data input and output for
ROM correction
34
ROMCOR SCL
I/O E2PROM I2C clock output for ROM correction
Panel 5V control
L: ON
35
PON PANEL
I/O
(Flip-down panel model only)
Hi-Z: Momentary power down, panel detached or 11
minutes after ACC OFF
36
DSI
I/O
DSI/EJECT LED control
OFF: Hi-z, Pulse drive: Panel detached
(Flip-down panel model only)
H: Illumination ON or panel opened (POWER ON)
37,38
NC
-
Not used
L fixed
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