参数资料
型号: MC68HC705CT4FN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.048 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 85/152页
文件大小: 668K
代理商: MC68HC705CT4FN
NON-DISCLOSURE
AGREEMENT
REQUIRED
Interrupts
General Release Specification
MC68HC705CT4 Rev. 2.0
38
Interrupts
MOTOROLA
Figure 4-1. Interrupt Processing Flowchart
N
RESTORE REGISTERS
FROM STACK:
CCR, A, X, PC
IRQ
EXTERNAL
INTERRUPT
CMP3
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
CORE TIMER
INTERRUPT
SWI
INSTRUCTION
?
N
Y
RTI
INSTRUCTION
?
Y
FROM
RESET
Y
INTERNAL
16-BIT TIMER
INTERRUPT
N
Y
INTERNAL
SSI
INTERRUPT
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