参数资料
型号: ST72101G2B1/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, PLASTIC, SDIP-32
文件页数: 11/85页
文件大小: 879K
代理商: ST72101G2B1/XXX
Obsolete
Product(s)
- Obsolete
Product(s)
19/85
ST72101/ST72212/ST72213
INTERRUPTS (Cont’d)
Figure 16. Interrupt Processing Flowchart
I BIT SET?
Y
N
IRET?
Y
N
FROM RESET
LOAD PC FROM INTERRUPT VECTOR
STACK PC, X, A, CC
SET I BIT
FETCH NEXT INSTRUCTION
EXECUTE INSTRUCTION
THIS CLEARS I BIT BY DEFAULT
RESTORE PC, X, A, CC FROM STACK
INTERRUPT
Y
N
PENDING?
19
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