Philips DVDR600VR/37 - Page 196

Circuit Descriptions, Abbreviation List, and Data Sheets
EN 45VAD8041 9.
IC7500, PNX7850: Servo Board, Channel Codec/Buffer
Manager/Servo Processor and Controller
IC7603, LD1117: Servo Board, Voltage Regulator
CHANNEL CODEC BUFFER
MANAGER
wobble
HF
EF
M
motor
TELEMETRY
SDRAM
CONTROLLER
SDRAM
actuators
LF input
host
PI-bus
INSTRUCTION
EXECUTION
UNIT
COPROCESSOR
MIPS PR1910
OPC input
SERVO DSP AND CONTROL PROCESSOR
UDMA66
HOST
INTERFACE
audio
UART
GPIO
I
2
C
Flash
ANALOG
POWER
MANAGEMENT
DRIVE INTERFACE
CD/DVD
WOBBLE
PROCESSOR
EFM WRITE
CLOCK/DATA
GENERATOR
SIGNAL
CONDITION.
BIT
DETECTION
AND
DEMOD.
CD/DVD
CHANNEL
ENCODE/
DECODE
WITH
ERROR
CORRECTION
DATA BLOCK
ENCODE/
DECODE
MICRO
INTERFACE
TACHO/MOTOR
CONTROL
DEEPLY EMBEDDED
MEMORY
DEBUG SUPPORT
CACHE
INTERFACE
MICRO
INTERFACE
MEMORY
PROCESSOR
AUTOMATION
OPC
SERVO
DSP
SERVO
ACCELERATORS
STATIC MEMORY
INTERFACE
POWER CONTROL
AND RESET
UART
CONFIG
I
2
C
GPIO
ROM
INTERRUPT
CONTROLLER
EJTAG
CSS
AUDIO
PROCESSOR
Nexperia PNX7
8
5
0
conceptual block diagra
m
BLOCK DIAGRAM