參數(shù)資料
型號: DSP1620
英文描述: TVS 400W 6.0V BIDIRECT SMA
中文描述: 澄清,串行I /設(shè)備的DSP1620/27/28/29 O控制注冊說明
文件頁數(shù): 31/114頁
文件大?。?/td> 804K
代理商: DSP1620
Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
Lucent Technologies Inc.
29
4 Hardware Architecture
(continued)
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.
Figure 8. DSP Core Operation Sequence
EBUSY = FALSE
ECCP OFF
(LOAD ECCP)
EBUSY = TRUE
ECCP ON
(EXEC ECCP)
EBUSY = FALSE
ECCP OFF
(UNLOAD ECCP)
PROGRAM ECCP
{ECON = VALUE, TBLR = TL
H, G = CHANNEL, GEN. POLY.}
LOAD SYMBOL 1
INTO ZI:ZQ/S[5:0]
LOAD SYMBOL TL
INTO ZI:ZQ/S[5:0]
LOAD SYMBOL TL + 1
INTO ZI:ZQ/S[5:0]
LOAD SYMBOL N
INTO ZI:ZQ/S[5:0]
UPDATE MLSE/CONV INSTR 1
UPDATE MLSE/CONV INSTR TL
UPDATE MLSE/CONV INSTR TL + 1
UPDATE MLSE/CONV INSTR N
TRACEBACK INSTR 1
TRACEBACK INSTR TL
INVALID DECODED SYMBOL 1
INVALID DECODED SYMBOL TL
VALID DECODED SYMBOL 1
VALID DECODED SYMBOL N + TL
VALID DECODED SYMBOL N + TL + 1
VALID DECODED SYMBOL N
PROGRAM
ECCP
LOAD N SET
OF RECEIVED
SYMBOLS
AND
EXECUTE N
UPDATE
INSTRUCTIONS
EXECUTE
TL TRACEBACK
INSTRUCTIONS
DISCARD TL
INVALID
DECODED
SYMBOLS
ACCEPT N
VALID
DECODED
SYMBOLS
5-4501(F).a
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