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Dmov – Texas Instruments TMS320C2XX User Manual

Page 220

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Data Move in Data Memory

DMOV

7-67

Assembly Language Instructions

Cycles for a Single DMOV Instruction

Program

Operand

ROM

DARAM

SARAM

External

DARAM

1

1

1

1+p

SARAM

1

1

1, 3

1+p

External

2+2d

2+2d

2+2d

5+2d+p

† If the operand and the code are in the same SARAM block
‡ If used on external memory, DMOV reads the specified memory location but performs no

operations.

Cycles for a Repeat (RPT) Execution of a DMOV Instruction

Program

Operand

ROM

DARAM

SARAM

External

DARAM

n

n

n

n+p

SARAM

2n–2

2n–2

2n–2, 2n+1

2n–2+p

External

4n–2+2nd

4n–2+2nd

4n–2+2nd

4n+1+2nd+p

† If the operand and the code are in the same SARAM block
‡ If used on external memory, DMOV reads the specified memory location but performs no

operations.

Example 1

DMOV

DAT8

;(DP = 6)

Before Instruction

After Instruction

Data Memory

Data Memory

308h

43h

308h

43h

Data Memory

Data Memory

309h

2h

309h

43h

Example 2

DMOV

*,AR1

Before Instruction

After Instruction

ARP

0

ARP

1

AR0

30Ah

AR0

30Ah

Data Memory

Data Memory

30Ah

40h

30Ah 40h

Data Memory

Data Memory

30Bh

41h

30Bh

40h

Cycles