85
DEX-P9,P9R
-
Pin Functions (PE5238A)
Pin No.
Pin Name
I/O
Format
Function and Operation
1
bsck
I/O
/C
P-Bus serial clock input/output
2
BDATA
I/O
/C
P-Bus serial data input/output
3
CONT
O
C
Servo driver power supply control output
4
CDLOAD
O
C
Load/Eject motor load control output
5
CDEJET
O
C
Load/Eject motor eject control output
6
NC
Not used (Open)
7
reset
Chip reset
8
VDD1
Positive power supply of parts other than ports
(make potential the same as that of VDD0)
9
X2
Connection for crystal oscillating system clock
10
X1
I
Connection for crystal oscillating system clock
11
VSS1
GND for parts other than ports
(make potential the same as that of VSS0)
12-14
CBANK0-2
O
C
COMP IC bank setting output 0-2
15
crst
O
C
COMP IC reset output
16-18
NC
Not used (Open)
19
SUBOK
O
C
Output for sub code information being OK
20,21
NC
Not used (Open)
22
DSET
O
C
Light output for disc set indicator
23,24
NC
Not used (Open)
25
DSPMUTE
O
C
DOUT Mute output
26-28
NC
Not used (Open)
29
BRXEN
I/O
/C
P-Bus receivability input/output
30
NC
Not used (Open)
31
CD5VON
O
C
CD+5V power supply control output
32,33
NC
Not used (Open)
34
emph
O
C
Emphasis information output
35
NC
Not used (Open)
36
xrst
O
C
CD LSI reset output
37
NC
Not used (Open)
38
xce
O
C
CD LSI chip enable output
39
XPCK
O
C
CD LSI clock output
40-43
XPIO3-0
I/O
/C
CD LSI data input/output 3-0
44
NC
Not used (Open)
45
VSS0
GND for ports (make potential the same as that of VSS1)
46
NC
Connected directly to VSS0
47
NC
Not used (Open)
O
C
VD power supply control output
I
Flap close sense input
Not used (Open)
I/O
/C
P-Bus polling demand output
Not used (Open)
Positive power supply of ports
(make potential the same as VDD1)
Not used (Open)
VD power supply sense input
Temperature sense input
Mechanism SW sense input
Not used (Open)
61
adena
O
C
A/D reference voltage supply control output
62,63
NC
Not used (Open)
64
AVDD
Positive power supply for A/D converter
65
AVREF1
Reference voltage impression for A/D converter
66
AVSS
GND for A/D converter
67,68
NC
Not used (Open)
69-71
NC
Connected to VSS0
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