5
KDC-4047UA/4047UG/4047UGY/4047UM
KDC-414UA/414UM/MP245U/U3046/U346/U4046
Pin No.
Pin Name
I/O
Application
Truth Value
Table
Processing / Operation / Description
31
VFD SYS DATA
O
VFD data output
VFD data output. VFD_BLK (Pin34) is made Hi and
the communication begins after 500ms.
32
VFD PAN DATA
I
VFD data input
33
VFD CLK
O
VFD clock output
125kHz
34
VFD BLK
O
VFD driver reset output
H: Reset cancelled, L: Reset,
11 minutes after momentary power-down or panel
detached or ACC OFF: L
35
S SYS DATA
O
Bolero serial output
36
S SOC DATA
I
Bolero serial input
37
S SOC CLK
I
Bolero serial clock input
38
CD LOS SW
I
CD loading detection
39
CD LOE LIM SW
I
CD detection (Chucking SW)
H: Loading completed, L: No disc
40
CD LOEJ
I/O CD motor control
q
Refer to the truth value table
41
ROMCOR DET
I
E2PROM writing request
H: Writing
41
EPM
I
Flash ROM EPM input
L: Rewritable (Only when
fl
ash ROM is used).
Connects to VSS.
42
CD MOTOR
I/O CD motor control
q
Refer to the truth value table
43
NC
-
Not used
Output L
fi
xed
44
CD DISC12 SW
I
12cm disc detection
45
NC
-
Not used
Output L
fi
xed
46
VFD CE
O
VFD control request
H: Possible to transfer VFD data
47
AUD SDA
I/O E-VOL data input/output
48
AUD SCL
I/O E-VOL clock output
49
ROTARY CCW
I
VOL encoder input
Detects pulse width
50
ROTARY CW
I
VOL encoder input
Detects pulse width
51
RDS DATA
I/O RDS decoder data input
52
RDS QUAL
I
RDS decoder quali
fi
cation input
53
SOC MUTE
I
CD mute request
H: Normal, L: Mute request
54
S SOC REQ
I
Communication request from SOC to system
μ
-com
55
SOC RST
O
SOC reset
H: Normal, L: Reset
56
SOC S STOP
O
SOC stop
H: Normal, L: SOC stopped
57
S SYS REQ
O
Communication request from system
μ
-com
to system
μ
-com to SOC
58~61
NC
-
Not used
Output L
fi
xed
62
VCC2
-
63
NC
-
Not used
Output L
fi
xed
64
VSS
-
65~73
NC
-
Not used
Output L
fi
xed
74
RDS CLK
I/O RDS decoder clock input
75
NC
-
Not used
Output L
fi
xed
76
PWIC STBY
O
Power IC standby control
POWER ON: H, POWER OFF: L
MICROCOMPUTER’S TERMINAL DESCRIPTION
