Ic Pin Function Description - Sony WX-7700MDX Service Manual

5-29. IC PIN FUNCTION DESCRIPTION

• SERVO (MD) BOARD IC301 CXD2662R
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER)
Pin No. Pin Name
1 MNT0 (FOK)
2 MNT1 (SHOCK)
3 MNT2 (XBUSY)
4 MNT3 (SLOCK)
5 SWDT
6 SCLK
7 XLAT
8 SRDT
9 SENS
10 XRST
11 SQSY
12
DQSY
13 RECP
14 XINT
15 TX
16 OSCI
17 OSCO
18 XTSL
19 DIN0
20
DIN1
21
DOUT
22 DATAI
23
LRCKI
24
XBCKI
25
ADDT
26 DADT
27
LRCK
28
XBCK
29 FS256
30 DVDD
31 to 34
A03 to A00
35
A10
36 to 40
A04 to A08
41 A11
42 DVSS
43 XOE
44 XCAS
45 A09
I/O
Focus OK signal output to the MD mechanism controller
O
"H" is output when focus is on ("L": NG)
O
Track jump detection signal output to the MD mechanism controller
O
Busy monitor signal output to the MD mechanism controller
O
Spindle servo lock status monitor signal output to the MD mechanism controller
I Writing serial data signal input from the MD mechanism controller
I (S)
Serial data transfer clock signal input from the MD mechanism controller
I (S)
Serial data latch pulse signal input from the MD mechanism controller
O (3)
Reading serial data signal output to the MD mechanism controller
O (3) Internal status (SENSE) output to the MD mechanism controller
I (S)
Reset signal input from the MD mechanism controller "L": reset
Subcode Q sync (SCOR) output to the MD mechanism controller
O
"L" is output every 13.3 msec
Digital In U-bit CD format subcode Q sync (SCOR) output terminal
O
"L" is output every 13.3 msec
Laser power selection signal input terminal
I
"L": playback mode, "H": recording mode (fixed at "L" in this set)
O Interrupt status output to the MD mechanism controller
Recording data output enable signal input terminal
O
Writing data transmission timing input (Also serves as the magnetic head on/off output)
Not used
I System clock signal (512Fs=22.5792 MHz) input from the CXD2727Q
O System clock signal (512Fs=22.5792 MHz) output terminal Not used
Input terminal for the system clock frequency setting
I
"L": 22.5792 MHz, "H": 45.1584 MHz (fixed at "L" in this set)
I
Digital audio signal input terminal when recording mode Not used
I Digital audio signal input terminal when recording mode Not used
O Digital audio signal output terminal when playback mode Not used
I Recording data input terminal Not used
I L/R sampling clock signal (44.1 kHz) input terminal Not used
I Bit clock signal (2.8224 MHz) input terminal Not used
I Recording data input terminal Not used
O Playback data output to the CXD2727Q
O L/R sampling clock signal (44.1 kHz) output to the CXD2727Q
O Bit clock signal (2.8224 MHz) output to the CXD2727Q
O
Clock signal (11.2896 MHz) output to the CXD2727Q
— Power supply terminal (+3.3V) (digital system)
O Address signal output to the D-RAM
O Address signal output to the external D-RAM Not used
O Address signal output to the D-RAM
O Address signal output to the external D-RAM Not used
— Ground terminal (digital system)
O Output enable signal output to the D-RAM "L" active
O Column address strobe signal output to the D-RAM "L" active
O Address signal output to the D-RAM
Description
Almost all, "H" is output
Almost all, "H" is output Not used
WX-7700MDX
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