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5-1. IC PIN DESCRIPTION
• IC801 CXP83120A-029Q (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
C-SCOR
I
CD SCOR input
2
W/UP
I
Wake-up input
3
RMC
I
Sircs receiver input
4
OPEN-O
O
CD loading motor control output (Eject direction)
5
CLS-O
O
CD loading motor control output (Loading direction)
6
OPEN-I
I
CD open switch input
7
CLS-I
I
CD close switch input
8
—
—
Not used.
9
C-SENS1
I
CD SENSE-1 input
10
C-SENS2
I
CD SENSE-2 input
11
C-SQCK
O
CD Sub-Q read clock output
12
C-SQSO
I
CD Sub-Q data input
13
—
—
Not used.
14
C-XRST
O
CD reset output
15
C-XLAT
O
CD serial latch output
16
C-CLK
O
CD serial clock output
17
C-DATA
O
CD serial data output
18
R-ST
O
Stereo indicator output
19
R-DATA
O
Tuner PLL data output
20
R-CLK
O
Tuner PLL clock output
21
R-COUNT
I
Tuner PLL data input
22
R-CE
O
Tuner PLL chip enable output
23
P.CON
O
System power control output
24
V-DATA
O
Volume serial data output
25
V-CLOCK
O
Volume serial clock output
26
V-CE
O
Volume serial chip enable output
27
REG-CHK
I
Low voltage detection input
28
BL-CONT
O
Back light control output
29
REC
I
Tape record signal input
30
INI
O
Tuner select initial setting output
31
SET 9k/10k
I
Tuner band 9k/10k select input
32
VERSION
I
Tuner destination band select input
33 – 36
KEY-1 – 4
I
Key input
37
SFT-CLK
O
Shift clock output
38
RESET
I
System reset input
39
EXTAL1
I
Oscillation input (4.19 MHz)
40
XTAL1
O
Oscillation output (4.19 MHz)
41
VSS
—
GND
42
XTAL2
—
Not used.
43
EXTAL2
—
Not used (Connected to GND).
44
AVREF
I
A/D converter VREF input
45
AVSS
—
Analog GND
46
VL
O
LCD drive port ON/OFF output
47 – 49
VLC-3 – 1
O
LCD drive voltage terminal
50 – 53
COM0 – 3
O
LCD drive common output
54 – 76
SEG0 – 22
O
LCD drive segment output
77 – 80
—
—
Not used.
81, 82
NC
—
Not used.
83
ROCK-LED
O
Not used.
84
POP-LED
O
Not used.
85
LIVE-LED
O
Not used.
SECTION 5
DIAGRAMS
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