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7-23. IC PIN FUNCTIONS
• IC101 DIGITAL SIGNAL PROCESSOR (CXD2587Q) (BD board)
SQSO
SQCK
XRST
SYSM
DATA
XLAT
CLOK
SENS
SCLK
VDD
ATSK
SPOA
SPOB
XLON
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
COUT
MIRR
DFCT
FOK
LOCK
MDP
SSTP
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
VSS
TEST
TES1
XTSL
VC
FE
SE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
O
I
I
I
I
I
I
O
I
–
I/O
I
I
O
O
O
O
O
O
O
I/O
I/O
I/O
I/O
I/O
O
I
O
O
O
O
O
O
–
I
I
I
I
I
I
Sub-Q 80-bit and PCM peak level data output (CD text data output)
Clock input for SQSO read-out
System reset
“L” : reset
Muting input “H” : mute
Serial data input, supplied from CPU
Latch input, supplied from CPU
Serial data transfer clock input, supplied from CPU
SENS signal output to CPU
SENS serial data read-out clock input
Digital power supply
Input pin for anti-shock (Connected to ground)
Microcomputer escape interface input A
Microcomputer escape interface input B
Microcomputer escape interface output
WFCK output (Not used)
Not used
Not used
Not used
Not used
Sub-code sync output
Numbers of track counted signal input/output (Not used)
Mirror signal input/output (Not used)
Defect signal input/output (Not used)
Focus OK input/output (Not used)
GFS is sampled by 460 Hz. H when GFS is H (Not used)
Output to control spindle motor servo
Input signal to detect disc inner most track
Sled drive output
Sled drive output
Tracking drive output
Tracking drive output
Focus drive output
Focus drive output
Digital ground
TEST pin connected normally to ground
TEST pin connected normally to ground
X'tal selection input (Connected to ground)
Center voltage input pin
Focus error signal input
Sled error signal input
Pin No.
Pin Name
I/O
Function
• Abbreviation
GFS : Guarded Frame Sync
