8
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
Pin No.
Pin Name
I/O
Application
Truth
Value Table
Processing / Operation / Description
74
ILLUMI DET
I
Dimmer illumination detection
L: ON, H: OFF
75
S SYS REQ
O
Communication request of system µ-com
→
SOC
76
S SOC REQ
I
Communication request of SOC
→
system
µ-com
77
PWIC MUTE
O
Power IC mute control
78
PWIC STBY
O
Power IC standby control
79
LINE MUTE
I
Line mute detection
TEL mute: Below 1V, NAVI mute: Over 2.5V
80
PWIC DC DET
I
DC offset detection
81
IC2 SDA
I/O
I2C data input/output
82
IC2 SCL
I/O
I2C clock input/output
83
NC
-
Not used
Output L fi xed
84
MUTE AFS
I/O
AFS mute
L: Mute ON, Hi-Z: Mute OFF
85
MUTE 0
O
E-VOL front mute
L: ON, H: OFF
86
MUTE 1
O
E-VOL rear mute
L: ON, H: OFF
87
MUTE 2
O
E-VOL SW mute
L: ON, H: OFF
88
MUTE PRE FR
O
PRE-OUT mute for FR
Mute is L during CD play: L
Momentary power down: L
Only condition when DUAL ZONE or NAVI INT: H fi xed
89
MUTE PRE SW
O
PRE-OUT mute for SW
L: Mute ON, H: Mute OFF
90,91
NC
-
Not used
Output L fi xed
92
RDS NOISE
I
FM noise detection
93
TUN SMETER
I
S-meter input
94
AVSS
-
95
NC
-
Not used
Output L fi xed
96
VREF
-
97
AVCC
-
98
LX DATA S
I
Data from slave unit
99
LX DATA M
O
Data to slave unit
100
LX CLK
I/O
LX-BUS clock
Truth value table
q
CD motor control
CD MOTOR (Pin50)
CD LOEJ (Pin49)
Stop
L
L
Load
H
L
Eject
H
H
Brake
H
Hi-z
MICROCOMPUTER’S TERMINAL DESCRIPTION
w
Destination setting
TYPE 2 (Pin64)
TYPE 1 (Pin63)
MODEL
0V
0V
KDC-MP435U
0V
1.2V
KDC-X491
0V
2.4V
VISTEON
1.2V
0V
KDC-MP4036U
2.4V
0V
KDC-W4537UA
2.4V
1.2V
KDC-W4537UG
2.4V
2.4V
KDC-W4737U
3.6V
0V
KDC-W4537UAY
3.6V
1.2V
KDC-W4537UGY
3.6V
2.4V
KDC-W4737UY
5V
0V
U525
