22
CDP-XE270/XE370
6-8.
IC PIN FUNCTION DESCRIPTION
•
Pin No.
Pin Name
I/O
Description
1
SQSO
O
Subcode Q data output to the system controller (IC501)
2
SQCK
I
Subcode Q data reading clock signal input from the system controller (IC501)
3
XRST
I
System reset signal input from the system controller (IC501) “L”: reset
4
SYSM
I
Analog line muting on/off control signal input terminal “H”: line muting on
Not used (fixed at “L”)
5
DATA
I
Serial data input from the system controller (IC501)
6
XLAT
I
Serial data latch pulse signal input from the system controller (IC501)
7
CLOK
I
Serial data transfer clock signal input from the system controller (IC501)
8
SENS
O
Internal status (SENSE) output to the system controller (IC501)
9
SCLK
I
SENSE serial data reading clock signal input from the system controller (IC501)
10
VDD
—
Power supply terminal (+5V) (digital system)
11
ATSK
I/O
Input/output terminal for anti-shock Not used (pull down)
12
SPOA
I
Microcomputer escape interface input A terminal Not used (fixed at “L”)
13
SPOB
I
Microcomputer escape interface input B terminal Not used (fixed at “L”)
14
XLON
O
Microcomputer escape interface output terminal Not used (open)
15
WFCK
O
Write frame clock signal output terminal Not used (open)
16
XUGF
O
XUGF signal output terminal Not used (open)
17
XPCK
O
XPCK signal output terminal Not used (open)
18
GFS
O
Guard frame sync signal output terminal Not used (open)
19
C2PO
O
C2 pointer signal output terminal Not used (open)
20
SCOR
O
Subcode sync (S0+S1) detection signal output to the system controller (IC501)
21
COUT
I/O
Numbers of track counted signal input/output terminal Not used (open)
22
MIRR
I/O
Mirror signal input/output terminal Not used (open)
23
DFCT
I/O
Defect signal input/output terminal Not used (open)
24
FOK
I/O
Focus OK signal input/output terminal Not used (open)
25
LOCK
I/O
GFS is sampled by 460 Hz “H” when GFS is “H” Not used (open)
26
MDP
O
Spindle motor (M101) servo drive signal output to the AN4800SB (IC150)
27
SSTP
I
Detection signal input from limit in switch (S101)
The optical pick-up is inner position when “H”
28
SFDR
O
Sled servo drive PWM signal (+) output to the AN4800SB (IC150)
29
SRDR
O
Sled servo drive PWM signal (–) output to the AN4800SB (IC150)
30
TFDR
O
Tracking servo drive PWM signal (+) output to the AN4800SB (IC150)
31
TRDR
O
Tracking servo drive PWM signal (–) output to the AN4800SB (IC150)
32
FFDR
O
Focus servo drive PWM signal (+) output to the AN4800SB (IC150)
33
FRDR
O
Focus servo drive PWM signal (–) output to the AN4800SB (IC150)
34
VSS
—
Ground terminal (digital system)
35
TEST
I
Input terminal for the test (fixed at “L”)
36
TES1
I
Input terminal for the test (fixed at “L”)
37
XTSL
I
Input terminal for the system clock frequency setting
“L”: 16.9344 MHz, “H”: 33.8688 MHz (fixed at “L” in this set)
38
VC
I
Middle point voltage (+2.5V) input from the CXA2581N (IC131)
39
FE
I
Focus error signal input from the CXA2581N (IC131)
40
SE
I
Sled error signal input from the CXA2581N (IC131)
41
TE
I
Tracking error signal input from the CXA2581N (IC131)
42
CE
I
Middle point servo analog signal input from the CXA2581N (IC131)
43
RFDC
I
RF signal input from the CXA2581N (IC131)
BD BOARD IC101 CXD2587Q
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, DIGITAL FILTER, D/A CONVERTER)
