参数资料
型号: MC68HCL05J1ADWR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封装: SOIC-20
文件页数: 67/126页
文件大小: 1118K
代理商: MC68HCL05J1ADWR2
Interrupts
Interrupt Processing
MC68HC05J1A — Rev. 1.0
Technical Data
MOTOROLA
Interrupts
45
Figure 4-3. Stacking Order
Table 4-1 summarizes the reset and interrupt sources and vector
assignments.
Table 4-1. Reset/Interrupt Vector Addresses
Function
Source
Local
Mask
Global
Mask
Priority
(1 = Highest)
Vector Address
Reset
Power-on
RESET pin
COP watchdog(1)
illegal address
1. The COP watchdog is a mask option.
None
1
$07FE–$07FF
Software
interrupt
(SWI)
User code
None
Same priority
as instruction
$07FC–$07FD
External
interrupt
IRQ pin
PA3 pin(2)
PA2 pin(2)
PA1 pin(2)
PA0 pin(2)
2. Port A external interrupt capability is a mask option.
IRQE bit
I bit
2
$07FA–$07FB
Timer
interrupts
TOF bit
RTIF bit
TOFE bit
RTIE bit
I bit
3
$07F8–$07F9
CONDITION CODE REGISTER
$00C0 (BOTTOM OF STACK)
$00C1
$00C2
ACCUMULATOR
INDEX REGISTER
PROGRAM COUNTER (HIGH BYTE)
PROGRAM COUNTER (LOW BYTE)
$00FD
$00FE
$00FF (TOP OF STACK)
1
2
3
4
5
4
3
2
1
UNSTACKING
ORDER
STACKING
ORDER
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