5
KDC-MP5029/W5031
/W5031Y/W531Y
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-COM : IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Processing Operation
1
DCERR
I
DC offset detection input
2
LINE MUTE
I
Phone detection
TEL MUTE : Below 1V
3
ROTARY CW
I
Rotary encoder input
4
AVSS
-
5
TUN TYPE1
I
E-VOL setting switch
Refer to “TUN TYPE” on the TRUTH TABLE
6
TUN TYPE2
I
E-VOL setting switch
Refer to “TUN TYPE” on the TRUTH TABLE
7
AVREF1
-
8
VFD DATAF
I
Data input from FVD driver
9
VFD DATAS
O
Data output to FVD driver
10
VFD CLK
O
Clock output to FVD driver
11
VFD RST
O
Reset output to FVD driver
Display OFF, Key reset, Panel opened : L
Display ON, Key scan : H
12
VFD CE
O
Chip enable output to VFD driver
13
ROTARY CCW
I
Rotary encoder input
14
FLIP DET
I
Panel detection
Panel released : H, Panel ON : L
15
PWIC BEEP
O
Beep output
16
LX DATA S
I
Data from slave unit
17
LX DATA M
O
Data to slave unit
18
LX CLK
I/O
LX-BUS clock
19
RDS AFSL
O
Tuner RDS mute output
Refer to “RDS AFSL” on the TRUTH TABLE
20
TUN ADJ
I
For adjusting IC10
Adjustment=H, PS1-1, 2=L, PS1-3=Hi-Z, PS2-1, 2=Hi-Z
TUN DATA, CLK=Hi-Z
21
TUN SD
I
Tuner search stop input
H : Station exists, L : Station does not exist
22
LX RST
O
Hard reset to slave unit
H : Reset, L : Normal condition
23
LX CON
O
Start-up request to slave unit
H : Slave unit ON, L : Slave unit OFF
24
LX REQ M
O
Communication request to slave unit
25
AUD SDA
I/O
Tuner + volume I2C data input and output
26
AUD SCL
I/O
Tuner + volume I2C clock input and output
27
PWIC STBY
O
Power IC standby output
Power IC ON : H, Power IC OFF : L
28
VOL MUTE
O
E-VOL mute output
L : Mute OFF, Hi-Z : Mute ON
29
PWIC MUTE
O
Power IC mute output
Power OFF : L, Standby : L, Tel mute : L
30
RDS AFSM
-
31
RESET2
O
Mute for reset
Output L
32
RDS DATA
I
RDS decoder data input
33
VSS1
-
34
RDS QUAL
I
RDS decoder QUAL input
35
ACC DET
I
ACC detection
ACC exists : L, ACC does not exist : H
36
BU DET
I
Momentary power-down detection
BU exists : L, BU does not exist (Momentary power-down) : H
37
PON
I/O
SW5V/SW14V control
Power ON : L, Power OFF : Hi-Z
38,39
PS2-2, PS2-1
O
Power supply control output
Refer to “POWER IC CONTROL” on the TRUTH TABLE
