SMJ320C25GBM Datasheet, PDF (13/38 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSOR

SMJ320C25, SMJ320C25Ć50
DIGITAL SIGNAL PROCESSOR
SGUS007D – AUGUST 1988 – REVISED OCTOBER 2001
Table 2. SMJ320C25 Instruction Set Summary (continued)
T REGISTER, P REGISTER, AND MULTIPLY INSTRUCTIONS
MNEMONIC
DESCRIPTION
NO.
INSTRUCTION BIT CODE
WORDS
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
APAC
LPH^†
Add P register to accumulator
Load high P register
1
1 1 0 0 1 1 1000010101
1
0 1 0 1 0 0 11M
D
LT
Load T register
1
0 0 1 1 1 1 00M
D
LTA
Load T register and accumulate previous product 1
0 0 1 1 1 1 01M
D
LTD
Load T register, accumulate previous product,
and move data
1
0 0 1 1 1 1 11M
D
LTP^†
Load T register and store P register in
accumulator
1
0 0 1 1 1 1 10M
D
LTS^† Load T register and subtract previous product
1
0 1 0 1 1 0 11M
D
MAC^† Multiply and accumulate
2
0 1 0 1 1 1 01M
D
MACD^† Multiply and accumulate with data move
2
0 1 0 1 1 1 00M
D
MPY
Multiply (with T register, store product in
P register)
1
0 0 1 1 1 0 00M
D
MPYA^‡ Multiply and accumulate previous product
1
0 0 1 1 1 0 10M
D
MPYK Multiply immediate
1
101
K
MPYS‡ _{Multiply and subtract previous product}
MPYU‡ _{Multiply unsigned}
1
0 0 1 1 1 0 11M
D
1
1 1 0 0 1 1 11M
D
PAC
Load accumulator with P register
1
1 1 0 0 1 1 1000010100
SPAC Subtract P register from accumulator
1
1 1 0 0 1 1 1000010110
SPH^‡ Store high P register
1
0 1 1 1 1 1 01M
D
SPL^‡
SPM^†
Store low P register
Set P register output shift mode
1
0 1 1 1 1 1 00M
D
1
1 1 0 0 1 1 1 0 0 0 0 0 1 0 PM
SQRA^† Square and accumulate
SQRS^† Square and subtract previous product
1
0 0 1 1 1 0 01M
D
1
0 1 0 1 1 0 10M
D
† _{These instructions are not included in the TMS320C1x instruction set.}
‡ _{These instructions are not included in the TMS32020 instruction set.}
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