26
CDP-CE275/CE375
6-10. IC PIN FUNCTION DESCRIPTION
• BD BOARD IC101 CXD2587Q
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, DIGITAL FILTER, D/A CONVERTER)
Pin No. Pin Name I/O Description
1 SQSO O Subcode Q data output to the system controller (IC301)
2 SQCK I Subcode Q data reading clock signal input from the system controller (IC301)
3 XRST I System reset signal input from the system controller (IC301) “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 Command serial data input from the system controller (IC301)
6 XLAT I Command latch pulse input from the system controller (IC301)
7 CLOK I Command serial data transfer clock signal input from the system controller (IC301)
8 SENS O Internal status monitor output to the system controller (IC301)
9 SCLK I SENSE serial data reading clock input from the system controller (IC301)
10 VDD — Power supply terminal (+5V) (digital system)
11 ATSK I/O Input pin for anti-shock Not used (fixed at “L”)
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 to the CXA2568M (IC103)
15 WFCK O WFCK output terminal Not used (open)
16 XUGF O Not used (open)
17 XPCK O Not used (open)
18 GFS O Not used (open)
19 C2PO O Not used (open)
20 SCOR O Subcode sync (S0+S1) detection signal output to the system controller (IC301)
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 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 BA5974FP (IC102)
27 SSTP I Limit in detect switch (S101) input terminal
28 SFDR O Sled servo drive PWM signal (+) output to the BA5974FP (IC102)
29 SRDR O Sled servo drive PWM signal (–) output to the BA5974FP (IC102)
30 TFDR O Tracking servo drive PWM signal (+) output to the BA5974FP (IC102)
31 TRDR O Tracking servo drive PWM signal (–) output to the BA5974FP (IC102)
32 FFDR O Focus servo drive PWM signal (+) output to the BA5974FP (IC102)
33 FRDR O Focus servo drive PWM signal (–) output to the BA5974FP (IC102)
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”: 45.1584 MHz, “H”: 22.5792 MHz
(fixed at “L” in this set)
38 VC I Middle point voltage (+2.5V) input from the CXA2568M (IC103)
39 FE I Focus error signal input from the CXA2568M (IC103)
40 SE I Sled error signal input from the CXA2568M (IC103)
41 TE I Tracking error signal input from the CXA2568M (IC103)
42 CE I Command chip enable signal input from the CXA2568M (IC103)
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