参数资料
型号: MC68HC11F1CFN4R2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 136/163页
文件大小: 711K
代理商: MC68HC11F1CFN4R2
MOTOROLA
RESETS AND INTERRUPTS
MC68HC11F1
5-12
TECHNICAL DATA
Figure 5-1 Processing Flow Out of Reset (1 of 2)
COP WATCHDOG TIMEOUT
X BIT IN
CCR SET
?
1B
1A
HIGHEST
LOWEST
POWER-ON RESET
(POR)
EXTERNAL RESET
CLOCK MONITOR FAIL
(WITH CME = 1)
(WITH NOCOP = 0)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFA, FFFB (VECTOR FETCH)
DELAY 4064 E CYCLES
SET S, X, AND I BITS
IN CCR
RESET MCU
HARDWARE
BEGIN AN INSTRUCTION
SEQUENCE
STACK CPU
REGISTERS
SET X AND I BITS
FETCH VECTOR
$FFE4, FFE5
YES
NO
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFC, FFFD (VECTOR FETCH)
LOAD PROGRAM COUNTER
WITH CONTENTS OF
$FFFE, FFFF (VECTOR FETCH)
PRIORITY
XIRQ
PIN LOW
?
NO
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