AT89S51-24 Ver la hoja de datos (PDF) - Atmel Corporation

Número de pieza

componentes Descripción

Fabricante

AT89S51-24

8-bit Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

AT89S51

Table 5-1. AT89S51 SFR Map and Reset Values

0F8H

0F0H

B

00000000

0E8H

0E0H

ACC

00000000

0D8H

0D0H

PSW

00000000

0C8H

0FFH

0F7H

0EFH

0E7H

0DFH

0D7H

0CFH

0C0H

0C7H

0B8H

0B0H

0A8H

0A0H

98H

90H

88H

80H

IP

XX000000

P3

11111111

IE

0X000000

P2

11111111

SCON

00000000

P1

11111111

TCON

00000000

P0

11111111

SBUF

XXXXXXXX

TMOD

00000000

SP

00000111

AUXR1

XXXXXXX0

TL0

00000000

DP0L

00000000

TL1

00000000

DP0H

00000000

TH0

00000000

DP1L

00000000

TH1

00000000

DP1H

00000000

WDTRST

XXXXXXXX

AUXR

XXX00XX0

0BFH

0B7H

0AFH

0A7H

9FH

97H

8FH

PCON

0XXX0000

87H

User software should not write 1s to these unlisted locations, since they may be used in future products to invoke new fea-

tures. In that case, the reset or inactive values of the new bits will always be 0.

Interrupt Registers: The individual interrupt enable bits are in the IE register. Two priorities can be set for each of the five

interrupt sources in the IP register.

7

2487C–MICRO–03/05

Share Link: