ds96-039wdsp ETC-unknow, ds96-039wdsp Datasheet - Page 31
ds96-039wdsp
Manufacturer Part Number
ds96-039wdsp
Description
Clarification Serial Control Register Description Dsp1620/27/28/29 Devices
Manufacturer
ETC-unknow
Datasheet
1.DS96-039WDSP.pdf
(114 pages)
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February 1997
4 Hardware Architecture
DSP Decoding Operation Sequence
The DSP operation sequence for invoking the ECCP for an MLSE equalization or convolutional decoding operation
is explained with the operation flow diagram in Figure 7.
Lucent Technologies Inc.
TL TRACEBACK
INSTRUCTIONS
INSTRUCTIONS
OF RECEIVED
LOAD N SET
EXECUTE N
PROGRAM
SYMBOLS
EXECUTE
UPDATE
ECCP
AND
H, G = CHANNEL, GEN. POLY.}
{ECON = VALUE, TBLR = TL
LOAD SYMBOL TL + 1
LOAD SYMBOL TL
PROGRAM ECCP
INTO ZI:ZQ/S[5:0]
INTO ZI:ZQ/S[5:0]
INTO ZI:ZQ/S[5:0]
LOAD SYMBOL N
INTO ZI:ZQ/S[5:0]
LOAD SYMBOL 1
EBUSY = FALSE
(LOAD ECCP)
ECCP OFF
(continued)
Figure 8. DSP Core Operation Sequence
UPDATE MLSE/CONV INSTR TL + 1
UPDATE MLSE/CONV INSTR TL
UPDATE MLSE/CONV INSTR N
UPDATE MLSE/CONV INSTR 1
TRACEBACK INSTR TL
TRACEBACK INSTR 1
EBUSY = TRUE
(EXEC ECCP)
ECCP ON
DSP1628 Digital Signal Processor
VALID DECODED SYMBOL N + TL + 1
VALID DECODED SYMBOL N + TL
INVALID DECODED SYMBOL TL
INVALID DECODED SYMBOL 1
VALID DECODED SYMBOL N
VALID DECODED SYMBOL 1
(UNLOAD ECCP)
EBUSY = FALSE
ECCP OFF
DISCARD TL
INVALID
DECODED
SYMBOLS
ACCEPT N
VALID
DECODED
SYMBOLS
5-4501(F).a
29
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