TS80C51U2 datasheet(4/67 Pages) ATMEL

No. de pieza	TS80C51U2

Descripción Electrónicos	Double UART 8-bit CMOS Microcontroller

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Fabricante Electrónico	ATMEL [ATMEL Corporation]

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4

Rev. D - 15 January, 2001

TS80C51U2

TS83C51U2

TS87C51U2

5. SFR Mapping

The Special Function Registers (SFRs) of the TS80C51U2 fall into the following categories:

• C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1

• I/O port registers: P0, P1, P2, P3

• Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2, RCAP2L, RCAP2H

• Serial I/O port registers for UART_0: SADDR_0, SADEN_0, SBUF_0, SCON_0

• Serial I/O port registers for UART_1: SADDR_1, SADEN_1, SBUF_1, SCON_1

• Baud Rate Generator registers: BRL, BDRCON, BDRCON_1

• Power and clock control registers: PCON

• HDW Watchdog Timer Reset: WDTRST, WDTPRG

• Interrupt system registers: IE, IP, IPH

• Others: AUXR, CKCON

Table 2. All SFRs with their address and their reset value

Bit

address-

able

Non Bit addressable

0/8

1/9

2/A

3/B

4/C

5/D

6/E

7/F

F8h

FFh

F0h

B

0000 0000

F7h

E8h

EFh

E0h

ACC

0000 0000

E7h

D8h

DFh

D0h

PSW

0000 0000

D7h

C8h

T2CON

0000 0000

T2MOD

XXXX XX00

RCAP2L

0000 0000

RCAP2H

0000 0000

TL2

0000 0000

TH2

0000 0000

CFh

C0h

SCON_1

0000 0000

SBUF_1

XXXX XXXX

C7h

B8h

IP

X000 0000

SADEN_0

0000 0000

SADEN_1

0000 0000

BFh

B0h

P3

1111 1111

IPH

X000 0000

B7h

A8h

IE

0X00 0000

SADDR_0

0000 0000

SADDR_1

0000 0000

AFh

A0h

P2

1111 1111

AUXR1

XXXX XXX0

WDTRST

XXXX XXXX

WDTPRG

XXXX X000

A7h

98h

SCON_0

0000 0000

SBUF_0

XXXX XXXX

BRL

0000 0000

BDRCON

0XXX 0000

BDRCON_1

0X00 00XX

9Fh

90h

P1

1111 1111

97h

88h

TCON

0000 0000

TMOD

0000 0000

TL0

0000 0000

TL1

0000 0000

TH0

0000 0000

TH1

0000 0000

AUXR

00XX XXX0

CKCON

XXXX XXX0

8Fh

80h

P0

1111 1111

SP

0000 0111

DPL

0000 0000

DPH

0000 0000

PCON

00X1 0000

87h

0/8

1/9

2/A

3/B

4/C

5/D

6/E

7/F

reserved

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TS80C51U2 Datasheet(PDF) 4 Page - ATMEL Corporation

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