21
CDX-CA750/CA750X/CA760X
• IC701 HD6432355A35F (SUB SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
PG3
O
Spectrum analyzer clock output
2
PG4
O
Not used (open)
3
VSS
—
Ground pin
4
NC
—
Not used (open)
5
VCC
—
Power supply pin
6 – 9
PC0 – PC3
O
Not used (open)
10
VSS
—
Ground pin
11 – 14
PC4 – PC7
O
Not used (open)
15 – 18
PB0 – PB3
O
Not used (open)
19
VSS
—
Ground pin
20 – 23
PB4 – PB7
O
Not used (open)
24 – 27
PA0 – PA3
O
Not used (open)
28
VSS
—
Ground pin
29 – 32
PA4 – PA7
O
Not used (open)
33
SP LAT(PWON)
I
Spectrum analyzer latch input
34
BU IN
I
Back-up power detection input
35
VSS
—
Ground pin
36
VSS
—
Ground pin
37
P65
O
Not used (open)
38
BUS ON
I
Bus on control signal
39
VCC
—
Power supply pin
40 – 43
PE0 – PE3
O
Not used (open)
44
VSS
—
Ground pin
45 – 48
PE4 – PE7
O
Not used (open)
49
PD0
O
Not used (open)
50
LINK OFF
O
Bus interface link off control signal
51
PD2
O
Not used (open)
52
ILL-ON
O
Illumination on/off switch signal output
53
VSS
—
Ground pin
54 – 56
PD4 – PD6
O
Not used (open)
57
BOOT
I
Flash write-in mode detection input
58
VCC
—
Power supply pin
59
NC
—
Not used (open)
O
Flash write-in data/LCD driver data output
O
Not used (open)
I
Flash write-in data input
O
Reset signal for SIRCS inveter
O
LCD driver clock output
—
Ground pin
O
LCD driver chip enable output
—
Ground pin
—
Ground pin
O
Not used (open)
70
LCD CE2
O
Not used (open)
71
LCD INH2
O
Not used (open)
72 – 78
P27 – P21
O
Not used (open)
79
P20
O
Flash write-in control signal
80
FWE L
I
Flash write-in enable input
81
RES
I
Reset signal
82
NMI
I
Non maskable interrupt signal
83
STBY
Standby mode signal
84
VCC
—
Power supply pin
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