KDC-MP819/X659/Z838
6
Pin No.
Pin Name
I/O
Description
Processing Operation
88
KR1
I
Key return 1 input
89
SC REQ
O
Communication request output to the system MI-COM. Lo: Standby, Hi: Request
90
NC
O
Not used(N.C.)
91
SC CON
I
Control input from the system MI-COM.
Hi: Operation mode
92
NC
O
Not used(N.C.)
93
SOURCE
I
Source key input
Lo: Key OFF, Hi: Key ON
94
VREF CON
O
A/D converter reference voltage control output
Hi: Active, Connected to AVREF terminal
95
MC REQ
I
Communication request input from the system MI-COM. Hi: Request
96
KS4
I/O Key scan output 4
97
KS3
I/O Key scan output 3
98
KS2
I/O Key scan output 2
99
KS1
I/O Key scan output 1
100
MC DATA
I
Data input from the system MI-COM.
MICROCOMPUTER'S TERMINAL DESCRIPTION
●
IC5 (ELECTRIC UNIT: X25-9240-XX)
Pin No.
Pin Name
I/O
Description
Processing Operation
1
MC DATA
I/O Data input/output with the panel MI-COM.
2
MC CLK
O
Clock output to the panel MI-COM.
Lo: DSI ON, Hi-Z: DSI OFF
3
DSI GUIDE
I/O DSI control output
Lights on at the panel tilted during POWER ON mode.
Flashing at the panel detached during POWER ON mode.
Lo: ON, Hi-Z: OFF
4
EJECT KEY G
O
Eject key illumination green control output
Lights on at the panel tilted during POWER ON
mode in case of the key illumination green.
5
EJECT KEY R/G
O
Eject key illumination red/green control output
Lo: ON, H-Z: OFF
Lights on at the panel tilted during POWER ON mode.
6
MC REQ
I/O
Communication request output to the panel MI-COM. Hi: Request
/FLIP DET
/Flip detection input
/Lo: Panel detached, Hi: Panel attached
7
IC2 SDA
I/O Data input/output with IC2, IC5, and IC25
8
IC2 SCL
I/O Clock input/output with IC2, IC5, and IC25
9
EVDD
-
Positive power supply connection terminal
Connected to BU 5V lines.
10
EVSS
-
Ground connection terminal
Connected to GND lines.
11
PAN RESET
O
Reset output to the panel MI-COM.
Lo: Reset or Momentary power down detected
12
BEEP
O
BEEP output
13
REMO
I
Data input from the wired remote control
Not used(N.C.)
Lo: During vehicle small lamps turn on
I/O Data input/output with F/E
I/O Clock input/output with F/E
Lo: Power IC OFF, Hi: Power IC ON or ALL OFF mode
Hi-Z: POWER OFF mode or ALL OFF mode, Hi:
POWER ON mode
Hi: During TUNER mode or last FM mode with
RDS/RBDS model
Not used(Connected to GND lines)
Lo: Muting during POWER OFF mode, ALL OFF
mode and TEL MUTE ON
23
PAN5V
I/O Panel 5V control output
Lo: Panel attached normally, Hi-Z: Panel detached
or tilted
Bass boost OFF__Hi: 160msec, Lo: 40msec
24
EXT-AMP-CON
O
External amp. control output (in 200msec)
Bass boost LOW__Hi: 130msec, Lo: 70msec
Bass boost HI__ Hi: 100msec, Lo: 100msec
25
CD MECHA+B I/O CD4.7V ON/OFF output
Lo: During CD source selected, Hi-z: Except CD
source selected
26
EMUTE
O
Not used(N.C.)
27
BU DET
I
Momentary power down detection input
Lo: BU ON, Hi: When momentary power down
detected or BU OFF
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