AT89LP428 datasheet(45/149 Pages) ATMEL

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3654A–MICRO–8/09

AT89LP428/828

Table 11-2.

TCON

– Timer/Counter Control Register

TCON = 88H

Reset Value = 0000 0000B

Bit Addressable

TF1

TR1

TF0

TR0

IE1

IT1

IE0

IT0

Bit

543

Symbol

Function

TF1

Timer 1 Overflow Flag. Set by hardware on Timer/Counter overflow. Cleared by hardware when the processor vectors

to interrupt routine.

TR1

Timer 1 Run Control Bit. Set/cleared by software to turn Timer/Counter on/off.

TF0

Timer 0 Overflow Flag. Set by hardware on Timer/Counter overflow. Cleared by hardware when the processor vectors

to interrupt routine.

TR0

Timer 0 Run Control Bit. Set/cleared by software to turn Timer/Counter on/off.

IE1

Interrupt 1 Edge Flag. Set by hardware when external interrupt edge detected. Cleared when interrupt processed.

IT1

Interrupt 1 Type Control Bit. Set/cleared by software to specify falling edge/low level triggered external interrupts.

IE0

Interrupt 0 Edge Flag. Set by hardware when external interrupt edge detected. Cleared when interrupt processed.

IT0

Interrupt 0 Type Control Bit. Set/cleared by software to specify falling edge/low level triggered external interrupts.

AT89LP428 数据表(PDF) 45 Page - ATMEL Corporation

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