參數(shù)資料
型號(hào): MC68HC05RC18FN
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 64/126頁
文件大?。?/td> 1180K
代理商: MC68HC05RC18FN
NON-DISCLOSURE
AGREEMENT
REQUIRED
Interrupts
General Release Specification
MC68HC05RC18 Rev. 2.1
42
Interrupts
Freescale Semiconductor
Figure 4-1. Interrupt Processing Flowchart
N
RESTORE REGISTERS
FROM STACK: CCR, A, X, PC.
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?
SWI
INSTRUCTION
?
N
Y
RTI
INSTRUCTION
?
Y
FROM
RESET
Y
INTERNAL
CMT
INTERRUPT?
N
Y
INTERNAL
CORE TIMER
INTERRUPT?
IRQ/PORT B KEYSCAN
EXTERNAL
INTERRUPTS?
EIMSK
CLEAR?
Y
N
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