47
HCD-DP800AV
6-27. IC PIN FUNCTIONS
1
SOSQ
O
Sub-Q serial output.
2
SQCK
I
Clock input for SQSO read-out
3
XRST
I
System reset.
4
SYSM
I
Muting input.
5
DATA
I
Serial date input,supplied from CPU.
6
XLAT
I
Latch input,supplied from CPU.
7
CLOK
I
Serial date transfer clock input,supplied from CPU.
8
SENS
O
SENS output.
9
SCLK
I
SENS serial data read-out clock.
10
VDD
I
Power supply.
11
ATSK
—
Input pin for anti-shock (Ground)
12
SPOA
—
Ground.
13
SPOB
—
Ground.
14
XLON
O
Not used.
15
WFON
O
Not used.
16
XUGF
O
Not used.
17
XPCK
O
Not used.
18
GFS
O
Not used.
19
2SPO
O
Not used.
20
SCOR
O
Sub-code sync output.
21
COUT
I/O
Not used.
22
MIRR
I/O
Not used.
23
DFCT
I/O
Not used.
24
FOK
I/O
Not used.
25
LOCK
I/O
Not used.
26
MDP
O
Output to control spindle motor servo.
27
SSTP
I
Input signal to detect disc inner most trak.
28
SFDR
O
Sled drive output.
29
SRDR
O
Sled drive output.
30
TFDR
O
Tracking drive output.
31
TRDR
O
Tracking drive output.
32
FFDR
O
Focus drive output.
33
FRDR
O
Focus drive output.
34
VSS
—
Ground.
35
TEST
I
TEST pin connected normally ground.
36
TES1
I
TEST pin connected normally ground.
37
XTSL
I
X’tal selection circuit input.
38
VC
I
Center voltage input.
39
FE
I
FOCUS error signal input.
40
SE
I
Sled error signal input.
41
TE
I
Tracking error signal input.
42
CE
I
Center servo analog input.
43
RFDC
I
RF signal input.
44
ADIO
O
Not used.
45
AVSS0
—
Analog ground.
46
IGEN
I
Power supply pin operational amplifiers.
47
AVDDO
I
Analog power supply.
48
ASYO
O
EFM full swing output.
49
ASYI
I
Asymmetry comparator voltage input.
50
BIAS
I
Asymmetry circuit constant current input.
51
RFAC
I
EFM signal input.
52
AVSS3
—
Analog ground.
Function
Pin Name
Pin No.
I/O
• IC101 DIGITAL SIGNAL PROCESSOR (CXD3017Q) (BD Board)
