参数资料
型号: MC68HC05T7B
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封装: SDIP-56
文件页数: 3/109页
文件大小: 9008K
代理商: MC68HC05T7B
Technical Data
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
102
External Interrupt Module (IRQ)
MOTOROLA
External Interrupt Module (IRQ)
Figure 9-3. Interrupt Flowchart
EXTERNAL
INTERRUPT?
I BIT SET?
TIMER
INTERRUPT?
FETCH NEXT
INSTRUCTION.
SWI
INSTRUCTION?
RTI
INSTRUCTION?
STACK PCL, PCH, X, A, CCR.
SET I BIT.
LOAD PC WITH INTERRUPT VECTOR.
YES
UNSTACK CCR, A, X, PCH, PCL.
EXECUTE INSTRUCTION.
CLEAR IRQ LATCH.
NO
FROM RESET
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