参数资料
型号: MC68HC11A1VFU2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64
封装: QFP-64
文件页数: 153/158页
文件大小: 3803K
代理商: MC68HC11A1VFU2
RESETS, INTERRUPTS, AND LOW POWER MODES
MC68HC11A8
9-14
TECHNICAL DATA
9
Figure 9-5 Interrupt Priority Resolution (Sheet 1 of 2)
2A
FETCH APPROPRIATE
VECTOR
BIT X IN
CCR = 1?
N
Y
N
HIGHEST
IRQ?
Y
N
RTII = 1?
Y
N
Y
N
IC1I = 1?
IC2I = 1?
Y
N
IC3I = 1?
Y
N
OC1I = 1?
Y
N
PRIORITY
INT?
XIRQ
PIN LOW?
Y
N
EXTERNAL
Y
N
REAL-TIME
Y
N
Y
N
FLAG
Y
N
FLAG
Y
N
FLAG
Y
N
IC2F = 1?
IC3F = 1?
OC1F = 1?
PIN?
STAF
AND STAI = 1?
Y
N
INTERRUPT?
IC1F = 1
BEGIN
SET BIT X IN CCR
FETCH VECTOR
$FFF4, $FFF5
FETCH VECTOR
$FFF2, $FFF3
FETCH VECTOR
$FFF0, $FFF1
FETCH VECTOR
$FFEE, $FFEF
FETCH VECTOR
$FFEC, $FFED
FETCH VECTOR
$FFE8, $FFE9
FETCH VECTOR
$FFEA, $FFEB
2B
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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