参数资料
型号: MC68HC05V7FNR2
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, PQCC68
封装: PLASTIC, LCC-68
文件页数: 111/170页
文件大小: 589K
代理商: MC68HC05V7FNR2
SECTION 5: INTERRUPTS
MOTOROLA
Page 31
MC68HC05V7 Specification Rev. 1.0
Figure 5-1:
Interrupt Processing Flowchart
N
RESTORE REGISTERS
FROM STACK:
CCR, A, X, PC
IRQ
EXTERNAL
INTERRUPT
LOAD PC FROM
APPROPRIATE
VECTOR
SET I BIT IN
CC REGISTER
STACK
PC, X, A, CCR
CLEAR IRQ
REQUEST
LATCH
FETCH NEXT
INSTRUCTION
EXECUTE
INSTRUCTION
N
Y
N
I-BIT
IN CCR
SET?
INTERNAL
SPI
INTERRUPT
SWI
INSTRUCTION
?
N
Y
RTI
INSTRUCTION
?
Y
FROM
RESET
N
Y
INTERNAL
16 BIT TIMER
INTERRUPT
N
Y
INTERNAL
MDLC
INTERRUPT
N
Y
INTERNAL
8 BIT TIMER
INTERRUPT
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