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TMS320F Datasheet(PDF) 204 Page - Texas Instruments

Part # TMS320F
Description  CPU and Instruction Set
PDF  389 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320F Datasheet(HTML) 204 Page - Texas Instruments

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MAC
Multiply and Accumulate
7-104
Cycles for a Repeat (RPT) Execution of an MAC Instruction (Continued)
Operand
External
SARAM
DARAM
ROM
Operand 1: DARAM/
ROM
Operand 2: SARAM
n+2
n+2
n+2
n+2+2pcode
Operand 1: SARAM
Operand 2: SARAM
n+2
2n+2†
n+2
2n+2†
n+2
2n+2†
n+2+2pcode
2n+2†
Operand 1: External
Operand 2: SARAM
n+2+npop1
n+2+npop1
n+2+npop1
n+2+npop1+2pcode
Operand 1: DARAM/
ROM
Operand 2: External
n+2+ndop2
n+2+ndop2
n+2+ndop2
n+2+ndop2+2pcode
Operand 1: SARAM
Operand 2: External
n+2+ndop2
n+2+ndop2
n+2+ndop2
n+2+ndop2+2pcode
Operand 1: External
Operand 2: External
2n+2+npop1+
ndop2
2n+2+npop1+ndop2 2n+2+npop1+ndop2
2n+2+npop1+ndop2+
2pcode
† If both operands are in the same SARAM block
Example 1
MAC
0FF00h,02h
;(DP = 6, PM = 0, CNF = 1)
Before Instruction
After Instruction
Data Memory
Data Memory
302h
23h
302h
23h
Program Memory
Program Memory
FF00h
4h
FF00h
4h
TREG
45h
TREG
23h
PREG
458972h
PREG
08Ch
ACC
X
723EC41h
ACC
0
76975B3h
CC
Example 2
MAC
0FF00h,*,AR5
;(PM = 0, CNF = 1)
Before Instruction
After Instruction
ARP
4
ARP
5
AR4
302h
AR4
302h
Data Memory
Data Memory
302h
23h
302h
23h
Program Memory
Program Memory
FF00h
4h
FF00h
4h
TREG
45h
TREG
23h
PREG
458972h
PREG
8Ch
ACC
X
723EC41h
ACC
0
76975B3h
CC



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