参数资料
型号: AT89EB5114-TGSIL
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: Low-pin-count 8-bit microcontroller with A/D converter
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDSO20
封装: SO-20
文件页数: 68/95页
文件大小: 1126K
代理商: AT89EB5114-TGSIL
68
4311A–8051–01/05
Table 53.
Priority Bit Level Values
A low-priority interrupt can be interrupted by a high priority interrupt, but not by another
low-priority interrupt. A high-priority interrupt can’t be interrupted by any other interrupt
source.
If two interrupt requests of different priority levels are received simultaneously, the
request of higher priority level is serviced. If interrupt requests of the same priority level
are received simultaneously, an internal polling sequence determines which request is
serviced. Thus within each priority level there is a second priority structure determined
by the polling sequence.
IPH.x
IP.x
Interrupt Level Priority
0
0
0 (Lowest)
0
1
1
1
0
2
1
1
3 (Highest)
Interrupt Name
Interrupt Address Vector
Priority Number
external interrupt (INT0)
0003h
1
Timer0 (TF0)
000Bh
2
external interrupt (INT1)
0013h
3
Timer1 (TF1)
001Bh
4
PWM0
0023h
5
PWM1
002Bh
6
ADC
0033h
7
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