參數資料
型號: MC68HC05E5P
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, PDIP28
封裝: PLASTIC, DIP-28
文件頁數: 70/140頁
文件大?。?/td> 847K
代理商: MC68HC05E5P
Interrupts
Timer Interrupt
MC68HC05E5 Rev. 1.0
General Release Specification
MOTOROLA
Interrupts
35
NON-DISCLOSURE
AGREEMENT
REQUIRED
Figure 4-1. Interrupt Processing Flowchart
FROM
RESET
EXTERNAL
INTERRUPT?
IRQ
INTERNAL
INTERRUPT?
TIMER
I BIT
SET?
IS
LOAD PC FROM:
SWI:
$1FFC–$1FFD
IRQ:
$1FFA–$1FFB
TIMER: $1FF8–$1FF9
CPI:
$1FF6–$1FF7
SSI:
$1FF4–$1FF5
M BUS: $1FF2–$1FF3
SET
I BIT.
STACK
PC, X, A, CC.
CLEAR IRQ
REQUEST
LATCH.
RESTORE RESISTERS
FROM STACK
CC, A, X, PC
FETCH NEXT
INSTRUCTION.
EXECUTE
INSTRUCTION.
Y
N
INTERNAL
INTERRUPT?
CPI
Y
N
INSTRUCTION
?
SWI
Y
N
INSTRUCTION
?
RTI
Y
N
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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