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- Pin Functions (PD4623B)
Pin No.
Pin Name
1
NC
xrst
2
3,4
NC
5
DCE
crst
6
home
7
clamp
8
9
VSS
10
NC
11
CDEJET
12
CDLOAD
13
CONT
14
NC
15
CDMUTE
16
DEEM
adena
17
18-23
NC
24
VSS
25
DSET
26
BMUTE
27-30
NC
brxen
31
bsrq
32
33
VDCONT
34
CD5VON
reset
35
36
TXARI
csens
37
brst
38
39
CMPARI
40
VDD
41
X2
42
X1
43
IC
44
NC
testin
45
46
AVSS
47
TEMP
48
VDSENS
49
EJTSNS
50
DSCSNS
51
NC
52
FOK
53
MIRR
54
LOCK
55
AVDD
56
AVREF
57
XSI
58
XSO
59
XSCK
xstb
60
61
XA0
62
NC
63
BDATA
bsck
64
I/O
Format
Function and Operation
Not used
O
C
CD LSI reset output
Not used
O
C
Chip enable output
O
C
IP-BUS reset output
Connect to VDD
I
Disc clamp input
GND
Not used
O
C
Load motor eject control output
O
C
LOAD motor loading control output
O
C
Servo driver power supply control
Not used
O
C
CD mute control output
Not used
O
C
A/D reference voltage control output
Not used
GND
Not used
Not used
Not used
I/O
C
Reception enable input/output
I
P-BUS serial pole request input
O
C
VD power control outpur
O
C
CD +5V power control output
I
Reset input
I
VDD
I
Flap close sense input
I
P–BUS reset input
I
GND
Power supply
Crystal oscillator connection pin
I
Crystal oscillator connection pin
Connect to GND
Not used
I
Test program start input
I
A/D GND
I
Temperature sense input
I
VD short detection input
Disc EJECT position detect
I
Disc detect
Not used
I
FOK signal input
I
Mirror detection input
I
Spindle lock detector input
Power supply
I
A/D converter reference voltage
I
Serial data input
O
C
Serial data output
O
C
Serial clock output
O
C
CD LSI strobe output
O
Control signal distinguishing data from microcomputer
Not used
I/O
C
P–BUS serial data input/output
I/O
C
P-BUS serial clock input/output
DEH-P86DHR,P76DH
Format
Meaning
C
C MOS
61
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