KDC-MP4028/MP428/MP6029
7
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Application
Processing Operation
82
MUTE PRE R
O
Rch preout mute
Becomes “H” when “CD MUTE R” is “L” or momentary power
down happens.
83
MUTE PRE L
O
Lch preout mute
Becomes “H” when “CD MUTE L” is “L” or momentary power
down happens.
84
MUTE 0
I/O
E-VOL front mute
L : MUTE ON, Hi-Z : MUTE OFF
85
MUTE 1
I/O
E-VOL rear mute
L : MUTE ON, Hi-Z : MUTE OFF
86
MUTE 2
I/O
Mute except E-VOL front/rear
L : MUTE ON, Hi-Z : MUTE OFF
87
LINE MUTE
I
Line mute detection
TEL MUTE : Below 1V, NAVI MUTE : Below 1V or over 2.5V
88
NC
-
89
PWIC DC DET
I
DC offset detection
90
LX RST
O
Hard reset to slave unit
H : Reset, L : Other condition
91
MUTE C
I/O
E-VOL mute
L : MUTE ON, Hi-Z : MUTE OFF
92
NC
-
93
RDS NOISE
I
FM noise detection
94
AVSS
-
95
TUN SMETER
I
S-meter input
96
VREF
-
97
AVCC
-
98
LX DATA S
I
Data from slave unit
99
LX DATA M
I/O
Data from slave unit
100
LX CLK
I/O
LX-BUS clock
TRUTH TABLE
CD MECHA CONTROL OPERATION
CD MECHA OPERATION
CD MOTOR
CD LOEJ
Stop
L
L
Load
H
L
Eject
H
H
Brake
H
Hi-z
●
MECHANISM
µ
-COM : IC4 on X32- (CD PLAYER UNIT)
Pin No.
Pin Name
I/O
Application
Processing Operation
Remarks
Description
1
NC
O
Not used.
Low-fixed
2
E2P_SCL
I/O
Rom correction E2P I2C clock
3~5
NC
O
Not used.
Low-fixed
6
VDD
-
5V electric potential
7
GND
-
GND electric potential
