Sony CDP-X229ES - Page 14

3-6. IC PIN FUNCTIONS
*« IC327 CD system controller (M37451M8-175FP)
Functions effected by the captioned controller include IC101 (RF signal processing, servo), 1C320 (DSP), and loading control in the CD unit, data
exchange with IC401 (Display, key control), audio bus entry, etc.
MREQ
CMD3 — CMDO
OUTSW
VLEVEL
VOLUP
VOLDWN
OO mm em] mm oe
Description
No connection
Count input from CXD2501Q (IC101)
Command output pulse output terminal
Master/File command select input/output
Command acknowledge output
Command request input
Master micro-computer inter-face 3-0
Data clock signal output to CXKD2500AQ (1C320), CXD2501Q (IC101)
Date latch pulse signal output to CKD2500AQ (1C320), CXD2501Q (IC101)
Data signal output to CKD2500AQ (1C320), CXD2501Q (IC101)
Attenuate data signal output to CKD2560M (1C301)
Attenuate data clock signal output to CKD2560M (IC301)
Attenuate data latch pulse signal output to CKD2560M (IC301)
Laser diode ON/OFF signal output
SCOR signal input from IC320 (CXD2500AQ)
No connection
Power terminal (GND)
Reset signal input
No connection
Clock input (10 MHz)
Clock output }
No connection
Power terminal (GND)
- No connection
Muting signal output (Digital mute)
Write enable output to 64k-bit static RAM (IC325)
Address output to 64k-bit static RAM (1C325)
No connection
Address output to 64k-bit static RAM (1C325)
Data input and output to 64k-bit static RAM (1C325)
Sense signal input from CXD2500AQ (IC320), CXD2501Q (IC101)
GFS monitor input from CXD2500AQ (1C320)
FOK monitor input from CXD2501Q (IC101)
Test mode terminal (""L": test mode)
Test mode terminal for adjustment ("L": test mode)
Loading-in switch input
Loading-out switch output
Remote control volume level input —
Remote control volume control output (Volume up)
Remote control volume control output (Volume down)
Power terminal (+5V)
Power terminal (GND)
Power terminal (+5V)
Power terminal (+5V)
Power terminal (GND)
9A