32
ICF-CD543RM
5-12.
IC PIN FUNCTION DESCRIPTION
•
LCD BOARD IC401
µ
PD789477GC-A16-8BT (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
NC
—
Not used
3 to 5
VLC0 to VLC2
—
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
6 to 9
COM0 to COM3
O
Common drive signal output to the liquid crystal display
10 to 25
SEG0 to SEG15
O
Segment drive signal output to the liquid crystal display
26 to 32
NC
—
Not used
33
OPEN S/W
I
Detection input from the tray open/close detect switch
“L”: when tray is open, “H”: when tray is close
34
CLOSE S/W
I
Detection input from the tray open/close detect switch
“L”: when tray is close, “H”: when tray is open
35
TRAY OPEN
O
Motor drive signal output to the disc tray open/close motor driver “H” table out
36
TRAY CLOSE
O
Motor drive signal output to the disc tray open/close motor driver “H” table in
37
NC
—
Not used
38
AVDD
—
Power supply terminal (+3.3V) (analog system)
39
I
Jog dial pulse input terminal
40
ENCODE –
I
Jog dial pulse input terminal
41
OPTION
I
Destination setting terminal Not used
42 to 44
KEY0 to KEY2
I
Key input terminal (A/D input)
45
RST
—
Not used
46
DRF
I
Focus on/off detection signal input from the digital signal processor
47
AVSS
—
Ground terminal (analog system)
48
RC
I
Remote control signal input from the remote control receiver
49
AC IN
I
Power failure detection signal input terminal “L”: power failure, “H”: power on
50
WRQ
I
Interruption detection signal input from the digital signal processor
51
FSEQ
I
Synchronizing signal detection signal input from the digital signal processor
52
BUZZER
O
Buzzer sound drive signal output
53
C LAT
O
Chip enable signal output to the digital signal processor
54
C DATA
O
Serial data output to the digital signal processor
55
C CLK
O
Serial data transfer clock signal output to the digital signal processor
56
C DATA IN
I
Serial data input from the digital signal processor
57
XRST
O
Reset signal output to the digital signal processor “L”: reset
58
VR DATA
O
Volume data output
59
VR CLOCK
O
Volume clock signal output
60
POWER ON
O
Power amplifier on/off control signal output “L”: standby mode, “H”: power amplifier on
61
R DATA
O
Serial data output terminal Not used
62
R CLK
O
Serial data transfer clock signal output to the FM/AM PLL
63
R DATA IN
I
Serial data input from the FM/AM PLL
64
R CE
O
Chip enable signal output to the FM/AM PLL
65
TRAY MUTE
O
Not used
66
NC
—
Not used
67
SHIFT 0
—
Not used
68
SHIFT 1
—
Not used
69
IC
—
Internal connection terminal
70
TX1
I
Sub system clock input terminal (32.768 kHz)
71
TX2
O
Sub system clock output terminal (32.768 kHz)
Содержание Walkman ICF-CD543RM
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