Name: Texas Instruments TMS320C28x
Brand: Texas Instruments
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Code Examples

Table D−3. Code to Enable an Interrupt

C2xLP C28x

SETC INTM

LDP #0

LACL IMR

OR #INTx

SACL IMR

CLRC INTM

OR IER,#INTx

;operation is atomic and

;will not be interrupted.

Table D−4. Code to Clear the IFR Register

C2xLP C28x

;write 1 to clear

SETC INTM

LDP #0

SPLK #0FFFFh,IFR

CLRC INTM

;write 0 to clear

AND IFR,#~INTx

;operation is atomic and

;will not be interrupted

D.4.3 Context Save/Restore

The C28x automatically saves a number of registers on each interrupt. To per-

form a full context save, some additional code must be added. Table D−5

shows a typical full context save and restore for both processors.

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