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: 137/163页
文件大小: 711K
代理商: MC68HC11F1CFN4R2
MC68HC11F1
RESETS AND INTERRUPTS
MOTOROLA
TECHNICAL DATA
5-13
Figure 5-2 Processing Flow Out of Reset (2 of 2)
ANY I BIT
INTERRUPT
PENDING
?
STACK CPU
REGISTERS
SET X AND I BITS
FETCH VECTOR
$FFE6, FFE7
YES
1A
1B
YES
NO
STACK CPU
REGISTERS
SET X AND I BITS
FETCH VECTOR
$FFE8, FFE9
FETCH OPCODE
STACK CPU
REGISTERS
STACK CPU
REGISTERS
SET I BIT
EXECUTE THIS
INSTRUCTION
RESTORE CPU
REGISTERS
FROM STACK
RESOLVE INTERRUPT
PRIORITY AND FETCH
VECTOR FOR HIGHEST
PENDING SOURCE
(REFER TO FIGURE 5-2)
START NEXT
INSTRUCTION
SEQUENCE
YES
NO
I BIT IN
CCR SET
?
NO
ILLEGAL
OPCODE
?
NO
WAI
?
NO
SWI
?
NO
RTI
?
NO
INTERRUPT
YET
?
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