AT89C5131A-RDTUM datasheet(22/188 Pages) ATMEL

tên linh kiện	AT89C5131A-RDTUM

Giải thích chi tiết về linh kiện	8-bit Flash Microcontroller with Full Speed USB Device

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4337K–USB–04/08

AT89C5130A/31A-M

The Special Function Registers (SFRs) of the AT89C5131 fall into the following categories:

Table 6-2.

C51 Core SFRs

Table 6-3.

I/O Port SFRs

Mnemonic

Add

Name

ACC

E0h

Accumulator

F0h

B Register

PSW

D0h

Program Status

Word

81h

Stack Pointer

LSB of SPX

DPL

82h

Data Pointer

Low byte

LSB of DPTR

DPH

83h

Data Pointer

High byte

MSB of DPTR

Mnemonic

Add

Name

80h

Port 0

90h

Port 1

A0h

Port 2

B0h

Port 3

C0h

Port 4 (2bits)

Table 6-4.

Timer SFR’s

Mnemonic

Add

Name

TH0

8Ch

Timer/Counter 0 High byte

TL0

8Ah

Timer/Counter 0 Low byte

TH1

8Dh

Timer/Counter 1 High byte

TL1

8Bh

Timer/Counter 1 Low byte

TH2

CDh

Timer/Counter 2 High byte

TL2

CCh

Timer/Counter 2 Low byte

TCON

88h

Timer/Counter 0 and 1

control

TF1

TR1

TF0

TR0

IE1

IT1

IE0

IT0

TMOD

89h

Timer/Counter 0 and 1

Modes

GATE1

C/T1#

M11

M01

GATE0

C/T0#

M10

M00

T2CON

C8h

Timer/Counter 2 control

TF2

EXF2

RCLK

TCLK

EXEN2

TR2

C/T2#

CP/RL2#

T2MOD

C9h

Timer/Counter 2 Mode

T2OE

DCEN

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