Texas Instruments TMS320C2XX User Manual

Page 257

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MAC

Multiply and Accumulate

7-104

Cycles

Cycles for a Single MAC Instruction

Operand

ROM

DARAM

SARAM

External

Operand 1: DARAM/
ROM
Operand 2: DARAM

3

3

3

3+2p

code

Operand 1: SARAM
Operand 2: DARAM

3

3

3

3+2p

code

Operand 1: External
Operand 2: DARAM

3+p

op1

3+p

op1

3+p

op1

3+p

op1

+2p

code

Operand 1: DARAM/
ROM
Operand 2: SARAM

3

3

3

3+2p

code

Operand 1: SARAM
Operand 2: SARAM

3
4

†

3
4

†

3
4

†

3+2p

code

4+2p

code

†

Operand 1: External
Operand 2: SARAM

3+p

op1

3+p

op1

3+p

op1

3+p

op1

+2p

code

Operand 1: DARAM/
ROM
Operand 2: External

3+d

op2

3+d

op2

3+d

op2

3+d

op2

+2p

code

Operand 1: SARAM
Operand 2: External

3+d

op2

3+d

op2

3+d

op2

3+d

op2

+2p

code

Operand 1: External
Operand 2: External

4+p

op1

+d

op2

4+p

op1

+d

op2

4+p

op1

+d

op2

4+p

op1

+d

op2

+2p

code

† If both operands are in the same SARAM block

Cycles for a Repeat (RPT) Execution of an MAC Instruction

Operand

ROM

DARAM

SARAM

External

Operand 1: DARAM/
ROM
Operand 2: DARAM

n+2

n+2

n+2

n+2+2p

code

Operand 1: SARAM
Operand 2: DARAM

n+2

n+2

n+2

n+2+2p

code

Operand 1: External
Operand 2: DARAM

n+2+np

op1

n+2+np

op1

n+2+np

op1

n+2+np

op1

+2p

code

† If both operands are in the same SARAM block

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