Microcomputer's Terminal Description - Kenwood KDC-MP5036U Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

● SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O
1 REMO I
2 LX REQ M O
3 LX MUTE I
4 LX CON O
5 LX RST O
6 BYTE -
7 CNVSS -
8 XCIN -
9 XCOUT -
10 RESET -
11 XOUT -
12 VSS -
13 XIN -
14 VCC1 -
15 NMI -
16 LX REQ S I
17 RDS CLK I
18 FLIP DET I
19 PON AM I/O
20 TUN IFC OUT I
21 RDS AFS M I/O
22 RDS QUAL I
23 RDS DATA I
24 USB SYNC O
25 NC -
26 PWIC BEEP O
27 TUN SCL I/O
28 TUN SDA I/O
29 VFD DATA I/O
30 VFD INT I
31 VFD CLK O
32 VFD RST O
33 S SYS DATA O
34 S SOC DATA I
Application
External display remote control input
Panel remote control input
Communication request to slave unit
Communication request from slave unit
Start-up request to slave unit
Forced reset to slave unit
Sub clock
Sub clock
Main clock
Main clock
Communication request from slave unit
RDS decoder clock input
Detection of panel connector detached/
attached
AM power supply control
Front-end IFC-OUT input
Noise detection time constant SW
RDS decoder QUAL input
RDS decoder data input
Clock output for SW-REG
Not used
Beep output
Front-end I2C clock input/output
Front-end I2C data input/output
VFD data input/output
VFD INT input
VFD clock output
VFD reset
System µ-com → SOC data
SOC → System µ-com data
KDC- MP5036U/MP535U/W6537U/
W6537UY/X591
Truth
Processing / Operation / Description
Value Table
Panel attached: Pull-up
Panel detached: Pull-down
H: Mute ON, L: Mute OFF
H: Slave unit ON, L: Slave unit OFF
H: Reset, L: Normal condition
32.768kHz
32.768kHz
12.00MHz
12.00MHz
H: Panel detached, L: Panel attached
AM reception: H, No AM reception: Hi-Z
H: Station found, L: No station
Output L fi xed
MAX400kHz
125kHz
H: Reset cancelled, L: Reset
Momentary power down or Panel detached or 11 minutes
after ACC OFF: L
5