16
CDX-CA900/CA900X
• IC701 HD64F2398A04FWV (SUB SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
PG3
O
Spectrum analyzer data clock signal output to electronic volume (IC301)
2
PG4
O
Not used. (Open)
3
VSS
—
Ground pin
4
NC
—
Not used. (Open)
5
VCC
—
Power supply pin (+5 V)
6 to 9
PC0 to PC3
O
Not used. (Open)
10
VSS
—
Ground pin
11 to 14
PC4 to PC7
O
Not used. (Open)
15 to 18
PB0 to PB3
O
Not used. (Open)
19
VSS
—
Ground pin
20 to 23
PB4 to PB7
O
Not used. (Open)
24 to 27
PA0 to PA3
O
Not used. (Open)
28
VSS
—
Ground pin
29 to 32
PA4/IRQ4 to PA7/IRQ7
O
Not used. (Open)
33
SA EN
I
Spectrum analyzer enable signal input from system control (IC501)
34
BU IN
I
Back up power signal input from bus interface (IC601)
35, 36
VSS
—
Ground pin
37
P65/IRQ1
O
Not used. (Open)
38
BUS ON
I
Bus on signal input from system control (IC501)
39
VCC
—
Power supply pin (+5 V)
40 to 43
PE0 to PE3
O
Not used. (Open)
44
VSS
—
Ground pin
45 to 48
PE4 to PE7
O
Not used. (Open)
49
—
O
Not used. (Open)
50
LINK OFF
O
Link off signal output
51
PD2
O
Not used. (Open)
52
ILL ON
O
Illumination power control signal output
53
VSS
—
Ground pin
54, 55
—
O
Not used. (Open)
56
PD6
O
Not used. (Open)
57
BOOT
I
Flash write mode detection signal input from system control (IC501)
58
VCC
—
Power supply pin (+5 V)
59
NC
O
Not used. (Open)
O
Flash write data signal output/LCD driver data signal output
O
Not used. (Open)
I
Flash write data signal input/Door switch detection signal input
O
Reset signal output
O
LCD driver clock signal output
—
Ground pin
O
LCD driver chip enable signal output
—
Ground pin
O
Not used. (Open)
O
Not used. (Open)
80
VCL
—
Connect to external capacitor
81
RST
I
Reset signal input
82
NMI
I
Non-maskable interruption signal input
83
STBY (H)
—
Standby mode pin
84
VCC
—
Power supply pin (+5 V)
85
XTAL
—
Crystal oscillator connection pin (18.432 MHz)
86
EXTAL
—
Crystal oscillator connection pin (18.432 MHz)
87
VSS
—
Ground pin
88
PF7
O
Not used. (Open)
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