參數(shù)資料
型號(hào): MC68HC11A0MFN
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: ROM-based high-performance microcontrollers
中文描述: 基于ROM的高性能微控制器
文件頁數(shù): 56/124頁
文件大小: 840K
代理商: MC68HC11A0MFN
RESETS AND INTERRUPTS
5-12
TECHNICAL DATA
Figure 5-1 Processing Flow out of Reset (1 of 2)
2A
BIT X IN
CCR = 1
Y
N
XIRQ
PIN LOW
Y
N
BEGIN INSTRUCTION
SEQUENCE
1A
STACK CPU
REGISTERS
SET BITS
I
AND
X
FETCH VECTOR
$FFF4, $FFF5
SET BITS
S
,
I
, AND
X
RESET MCU
HARDWARE
POWER-ON RESET
(POR)
EXTERNAL RESET
CLOCK MONITOR FAIL
(WITH CME = 1)
COP WATCHDOG
TIMEOUT
(WITH NOCOP = 0)
DELAY 4064 E CYCLES
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFE, $FFFF
(VECTOR FETCH)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFC, $FFFD
(VECTOR FETCH)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFA, $FFFB
(VECTOR FETCH)
HIGHEST
PRIORITY
LOWEST
PRIORITY
FLOW OUT OF RESET P1
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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