TMS320F datasheet(169/389 Pages) TI

169 / 389 page

Input Data From Port

7-69

Assembly Language Instructions

Cycles for a Single IN Instruction

Program

Operand

ROM

DARAM

SARAM

External

Destination: DARAM

2+iosrc

3+iosrc+2pcode

Destination: SARAM

2+iosrc

3+iosrc†

3+iosrc+2pcode

Destination: External

3+ddst+iosrc

6+ddst+iosrc+2pcode

† If the operand and the code are in the same SARAM block

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

Program

Operand

ROM

DARAM

SARAM

External

Destination: DARAM

2n+niosrc

2n+1+niosrc+2pcode

Destination: SARAM

2n+niosrc

2n+2+niosrc†

2n+1+niosrc+2pcode

Destination: External

4n–1+nddst+

niosrc

4n–1+nddst+niosrc

4n+2+nddst+niosrc+

2pcode

† If the operand and the code are in the same SARAM block

Example 1

7,1000h

;Read in word from peripheral on

;port address 1000h. Store word in

;data memory location 307h (DP=6).

Example 2

*,5h

;Read in word from peripheral on

;port address 5h. Store word in

;data memory location specified by

;current auxiliary register.

Cycles

TMS320F Datasheet(PDF) 169 Page - Texas Instruments

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