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MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
Active
Pin No.
Pin Name
(H/L)
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
TE
L 13942296513
48
CD LOEJ
49
CD MOTOR
50
NC
51
L
CD MRST
52
CD SCL
53
CD DISC12 SW
54
CD LOS SW
55
CD SDA
56
OEM DISP CE
57
OEM DISP CLK
58
OEM DISP DATA I/O
59
DSI
60
L
RESET
61
NC
62
L
PON FL
63
KEY REQ
64
RDS CLK
www
65
REMOTE
66
NC
67
VSS0
.
68
VDD1
69
X2
I/O
Application
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)
I/O
CD motor control
O
CD motor control
-
CD mecha µ-com reset
O
I/O
CD mecha I2C clock output
I
12cm CD detection
I
CD loading detection
I/O
CD mecha I2C data input and output
I/O
External display chip enable
I/O
External display clock
External display chip data
O
DSI control
I
-
O
VFD power supply ON
I
Communication request from VFD driver
I
RDS decoder clock input
I
Remote control input
x
ao
u163
y
-
-
i
-
-
KDC-3031A/3031AY/3031G/3031GY
KDC-309A/309G/F331A/F331G
2 9
8
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
Refer to "CD MECHA CONTROL OPERATION"
Q Q
3
6 7
1 3
1 5
on the TRUTH TABLE
Refer to "CD MECHA CONTROL OPERATION"
on the TRUTH TABLE
H : Normal condition, L : Reset
External display
External display
External display
DSI ON : H, DSI OFF : L, TDF DET=H (DSI blinks)
VFD ON : H, VFD OFF : L
TDF DET H (DSI blinks) : L, TDF DET L : H
L : Key input
co
.
9 4
2 8
Processing Operation
0 5
8
2 9
9 4
2 8
m
9 9
9 9
5
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