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: 138/163页
文件大小: 711K
代理商: MC68HC11F1CFN4R2
MOTOROLA
RESETS AND INTERRUPTS
MC68HC11F1
5-14
TECHNICAL DATA
Figure 5-3 Interrupt Priority Resolution (1 of 2)
2A
2B
YES
NO
FETCH VECTOR
$FFF4, FFF5
YES
NO
XIRQ PIN
LOW
?
YES
NO
YES
NO
IRQ
?
FETCH VECTOR
$FFF2, FFF3
YES
NO
RTII = 1
?
FETCH VECTOR
$FFF0, FFF1
YES
NO
REAL-TIME
INTERRUPT
?
YES
NO
IC1I = 1
?
FETCH VECTOR
$FFEE, FFEF
YES
NO
TIMER
IC1F
?
YES
NO
IC2I = 1
?
FETCH VECTOR
$FFEC, FFED
YES
NO
YES
NO
IC3I = 1
?
FETCH VECTOR
$FFEA, FFEB
YES
NO
YES
NO
OC1I = 1
?
FETCH VECTOR
$FFE8, FFE9
YES
NO
TIMER
OC1F
?
BEGIN
SET X BIT IN CCR
FETCH VECTOR
TIMER
IC3F
?
TIMER
IC2F
?
X BIT
IN CCR SET
?
PRIORITY
INTERRUPT
?
HIGHEST
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