Advertisement
MICROCOMPUTER'S TERMINAL DESCRIPTION
Active
Pin No.
Pin Name
(H/L)
11
L
VFD RST
12
VFD CE
13
ROTARY CCW
14
L
TDF DET
15
PWIC BEEP
16
LX DATA S
17
LX DATA M
18
LX CLK
19
RDS AFSL
20
L
TUN ADJ
21
TUN SD
22
H
LX RST
23
H
LX CON
24
LX REQ M
25
AUD SDA
26
AUD SCL
27
H
PWIC STBY
28
H
VOL MUTE
29
L
PWIC MUTE
30
TUN FANC OUT
31
RESET2
32
RDS DATA
33
VSS1
34
RDS QUAL
35
L
ACC DET
36
L
BU DET
37
NC
38
PS2-2
39
PS2-1
40
PS1-1
41
PS1-2
42
PS1-3
43,44
NC
45
CD MUTE
46
L
CD MSTOP
47
CD LOE LIM SW
I/O
Application
O
Reset output to VFD driver
O
Chip enable output to VFD driver
I
Rotary encoder input
I
TDF panel detection
O
Beep output
I
Data from slave unit
O
Data to slave unit
I/O
LX-BUS clock
O
Tuner RDS mute output
I
For adjusting IC10
I
Tuner search stop output
O
Hard reset to slave unit
O
Start-up request to slave unit
O
Communication request to slave unit
I/O
Volume + tuner I2C data input and output
I/O
Volume + tuner I2C clock input and output
O
Power IC standby output
O
E-VOL mute output
O
Power IC mute output
Tuner block (inside the µ-com) check
O
O
Mute for reset
I
RDS decoder data input
-
I
RDS decoder QUAL input
I
ACC detection
I
Momentary power-down detection
-
O
Power supply control output
O
Power supply control output
O
Power supply control output
O
Power supply control output
O
Power supply control output
-
I
CD mute request
O
CD mecha u-com stop
I
CD detection (chucking switch)
KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
Processing Operation
Display OFF, Key reset, TDF panel OFF : L
Display ON, Key scan : H
TDF panel OFF : H, TDF panel ON : L
Refer to "RDS AFSL" on the TRUTH TABLE
Adjustment=H, PS1-1,2=L, PS1-3=Hi-Z,
PS2-1,2=Hi-Z, TUN DATA, CLK=Hi-Z
H : Station exists, L : Station does not exist
H : Reset, L : Normal condition
H : Slave unit ON, L : Slave unit OFF
Power IC ON : H, Power IC OFF : L
L : Mute OFF, Hi-Z : Mute ON
Power OFF : L, Standby : L, Tel mute : L
OK : L, NG : H
Output L
ACC exists : L, ACC does not exist : H
BU exists : L
BU does not exist (Momentary power-down) : H
Refer to "POWER IC CONTROL" on the TRUTH TABLE
Refer to "POWER IC CONTROL" on the TRUTH TABLE
Refer to "POWER IC CONTROL" on the TRUTH TABLE
Refer to "POWER IC CONTROL" on the TRUTH TABLE
Refer to "POWER IC CONTROL" on the TRUTH TABLE
L : Mute request
H : mecha µ-com operates, L : mecha µ-com is stopped
H : Loading is finished, L : Disc does not exist
5
Advertisement
