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: 28/95页
文件大小: 1126K
代理商: AT89EB5114-TGSIL
28
4311A–8051–01/05
Registers
Table 13. TCON (S:88h)
Timer/Counter Control Register
Reset Value = 0000 0000b
7
6
5
4
3
2
1
0
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
Bit
Number
Bit
Mnemonic
Description
7
TF1
Timer 1 Overflow flag
Cleared by the hardware when processor vectors to interrupt routine.
Set by the hardware on Timer 1 register overflows.
6
TR1
Timer 1 Run Control bit
Clear to turn off Timer/Counter 1.
Set to turn on Timer/Counter 1.
5
TF0
Timer 0 Overflow flag
Cleared by the hardware when processor vectors to interrupt routine.
Set by the hardware on Timer 0 register overflows.
4
TR0
Timer 0 Run Control bit
Clear to turn off Timer/Counter 0.
Set to turn on Timer/Counter 0.
3
IE1
Interrupt 1 Edge flag
Cleared by the hardware as soon as the interrupt is processed.
Set by the hardware when external interrupt is detected on the INT1 pin.
2
IT1
Interrupt 1 Type Control bit
Clear to select low level active for external interrupt 1 (INT1).
Set to select sensitive edge trigger for external interrupt 1. The sensitive edge
(Rising or Falling) is determined by ESB1 value (Edge Selection Bit 1) in IOR
(Interrupt Option Register).
1
IE0
Interrupt 0 Edge flag
Cleared by the hardware as soon as the interrupt is processed.
Set by the hardware when external interrupt is detected on INT0 pin.
0
IT0
Interrupt 0 Type Control bit
Clear to select low level active trigger for external interrupt 0 (INT0).
Set to select sensitive edge trigger for external interrupt 0. The sensitive edge
(Rising or Falling) is determined by ESB0 (Edge Selection Bit 0) in IOR (Interrupt
Option Register).
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