AT89LP2052 datasheet(6/90 Pages) ATMEL

номер детали	AT89LP2052

подробное описание детали	8-bit Microcontroller with 2/4-Kbyte Flash

PDF	90 Pages

Scroll/Zoom	100%

производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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6 / 90 page

3547F–MICRO–6/06

AT89LP2052/LP4052

Special Function Registers

A map of the on-chip memory area called the Special Function Register (SFR) space is shown in

Table 6-1.

Note that not all of the addresses are occupied, and unoccupied addresses may not be imple-

mented on the chip. Read accesses to these addresses will in general return random data, and

write accesses will have an indeterminate effect. User software should not write to these unlisted

locations, since they may be used in future products to invoke new features.

Note:

*These SFRs are bit-addressable.

Table 6-1.

AT89LP2052/LP4052 SFR Map and Reset Values

0F8H

0FFH

0F0H

0000 0000

0F7H

0E8H

0EFH

0E0H

ACC*

0000 0000

0E7H

0D8H

0DFH

0D0H

PSW*

0000 0000

SPCR

0000 0000

0D7H

0C8H

0CFH

0C0H

P1M0

1111 1111

P1M1

0000 0000

P3M0

1111 1111

P3M1

0000 0000

0C7H

0B8H

IP*

x0x0 0000

SADEN

0000 0000

0BFH

0B0H

P3*

1111 1111

IPH

x0x0 0000

0B7H

0A8H

IE*

00x0 0000

SADDR

0000 0000

SPSR

000x xx00

0AFH

0A0H

WDTRST

(write-only)

WDTCON

0000 x000

0A7H

98H

SCON*

0000 0000

SBUF

xxxx xxxx

9FH

90H

P1*

1111 1111

TCONB

0010 0100

RL0

0000 0000

RL1

0000 0000

RH0

0000 0000

RH1

0000 0000

ACSR

xx00 0000

97H

88H

TCON*

0000 0000

TMOD

0000 0000

TL0

0000 0000

TL1

0000 0000

TH0

0000 0000

TH1

0000 0000

8FH

80H

0000 0111

DPL

0000 0000

DPH

0000 0000

SPDR

xxxx xxxx

PCON

000x 0000

87H

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