ST72213G1M1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72213G1M1

8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WDG, SPI AND 1 OR 2 TIMERS

STMicroelectronics 

ST72101/ST72212/ST72213

INTERRUPTS (Cont’d)

Figure 16. Interrupt Processing Flowchart

FROM RESET

I BIT SET?

N

Y

FETCH NEXT INSTRUCTION

N

INTERRUPT

PENDING?

Y

N

EXECUTE INSTRUCTION

IRET?

Y

STACK PC, X, A, CC

SET I BIT

LOAD PC FROM INTERRUPT VECTOR

RESTORE PC, X, A, CC FROM STACK

THIS CLEARS I BIT BY DEFAULT

19/85

19

Share Link: