參數(shù)資料
型號: AT83C51RB2XXX-SLSIL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: Microcontroller
中文描述: 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 45/81頁
文件大小: 1082K
代理商: AT83C51RB2XXX-SLSIL
46
AT80C51RD2/AT83C51Rx2
4113A–8051–09/02
Interrupt System
The T8xc51Rx2 have a total of 8 interrupt vectors: two external interrupts (INT0 and
INT1), three timer interrupts (timers 0, 1 and 2), the serial port interrupt, Keyboard inter-
rupt and the PCA global interrupt. These interrupts are shown in Figure 19.
Figure 19.
Interrupt Control System
Each of the interrupt sources can be individually enabled or disabled by setting or clear-
ing a bit in the Interrupt Enable register (Table 36 and Table 34). This register also
contains a global disable bit, which must be cleared to disable all interrupts at once.
Each interrupt source also can be individually programmed to one out of four priority lev-
els by setting or clearing a bit in the Interrupt Priority register (Table 37) and in the
Interrupt Priority High register (Table 35 and Table 36) shows the bit values and priority
levels associated with each combination.
IE1
0
3
High Priority
Interrupt
Interrupt
Polling
Sequence, Decreasing from
High to Low Priority
Low Priority
Interrupt
Global Disable
Individual Enable
EXF2
TF2
TI
RI
TF0
INT0
INT1
TF1
IPH, IPL
IE0
0
3
0
3
0
3
0
3
0
3
0
3
PCA IT
KBD IT
0
3
相關PDF資料
PDF描述
AT83C51RB2XXX-SLSIM Microcontroller
AT83C51RC2XXX-3CSCM Microcontroller
AT83C51RC2XXX-3CSIM Microcontroller
AT83C51RC2XXX-RLTIL Microcontroller
AT83C51RC2XXX-RLTIM Microcontroller
相關代理商/技術(shù)參數(shù)
參數(shù)描述
AT83C51RB2XXX-SLSIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller
AT83C51RC2 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
AT83C51RC2-3CSUL 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT83C51RC2-3CSUM 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT83C51RC2-RLTUL 制造商:IRF 制造商全稱:International Rectifier 功能描述:High Performance 8-bit Microcontroller