71
FH-P404
-
Pin Functions(PD4982A)
Pin No.
Pin Name
I/O
Function and Operation
1
NC
Not used
2
xrst
O
CD LSI reset output
3–6
NC
Not used
7
home
I
Connect to VDD
8
clamp
I
Disc clamp sense input
9
VSS
GND
10
NC
Not used
11
CDEJET
O
CD eject control output
12
CDLOAD
O
LOAD motor loading control output
13
CONT
O
Servo driver power supply control
14
NC
Not used
15
CDMUTE
O
CD mute output
16
NC
Not used
17
adena
O
A/D reference voltage output
18–23
NC
Not used
24
VSS
GND
25–30
NC
Not used
31
brxen
I/O
P-BUS reception enable input/output
32
bsrq
O
P-BUS serial pole request output
33
VDCNT
O
VD control output
34
CD5VON
O
CD +5V power supply control output
35
reset
I
Reset input
36
TXARI
I
Set up of TX output select input
37
csens
I
Flap close sense input
38
brst
I
P–BUS reset input
39
CMPARI
I
Compression select input
40
VDD
Power supply
41
X2
Crystal oscillator connection pin
42
X1
Crystal oscillator connection pin
43
IC
VSS
44
NC
Not used
45
testin
I
Test program mode input
46
AVSS
A/D GND
47
TEMP
I
Temperature detector input
48
VDSENS
I
VD over voltage sense input
49
EJTSNS
I
Disc EJECT position detect input
50
DSCSNS
I
Disc detect input
Not used
I
FOK signal input
I
Mirror detector input
I
Spindle lock detector input
A/D converter analog power supply
A/D converter reference voltage
I
LSI data input
O
LSI data output
O
LSI clock output
O
CD LSI strobe output
O
CD LSI data control output
Not used
63
BDATA
I/O
P–BUS serial data input/output
64
bsck
I/O
P-BUS serial clock input/output
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