L64704 LSI Logic Corporation, L64704 Datasheet - Page 97

• Manufacturer Part Number: L64704
• Description: Satellite Decoder Technical Manual 5/97
• Manufacturer: LSI Logic Corporation

Figure 4.10
L64704 Functional
Blocks in the Decoding
Pipeline
Configuration
4.5.1
Descrambler
Output
Parameters
Datapath
Decoder
Control
You can observe the output of the entire decoding pipeline, ending after
the Descrambler, by setting the OS[2:0] bits to 0b000.
Figure 4.12
Output Mode and Parallel Channel Output Mode respectively.
Data Path Output Configurations
show the Descrambler output waveforms for Serial Channel
Data
Deinterleaver/RS
Decoder Module
Synchronization
Synchronization
Viterbi Decoder
Deinterleaver
BPSK/QPSK
Demodulator
Viterbi Sync/
Descrambler
Descrambler
RS Decoder
Module
Module
Module
Module
Module
Module
RI RQ
OS[2:0] = 111
OS[2:0] = 110
OS[2:0] = 101
OS[2:0] = 100
OS[2:0] = 011
OS[2:0] = 010
OS[2:0] = 001
OS[2:0] = 000
Figure 4.11
OS[2:0]
and
4-13