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18
DESCRIPTION OF DATA PROCESSING
1. CD Data Processing Flow
CD
Pickup
Unit
Motor
Drive
Generating
A/B/C/E/F Signal
H8/3048
Buffer
CD Data Buffering
TC6817F
CD-ROM Decoder
and Host Interface
TC9461F
CD DSP
TA1254AF RF
Signal processing IC
CD TE/FE/SLED
Spindle Control
Command
Data
Status
SDATA
CD DATA
CD RF
BA [0..8]
BD [0..15]
MDATA [0..7]
MADR [0..5]
BUS [0..4]
CD Data ECC
Receive the order from Host
2'nd ECC
CD Data Buffering
Generating RF Signal
Generating Tracking Error
Generating Focusing Error
CD Servo Control
CD Data Flow Control
Host Command Receive or Data/Status Transfer
Error Correction
Generating Header Sync
Generating Subcode Sync
EFM Demodulation