AT89C5131-RDTIL datasheet(88/176 Pages) ATMEL

Nome de Peças	AT89C5131-RDTIL

Descrição Electrónicos	8-bit Flash Microcontroller with Full Speed USB Device

PDF	176 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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88 / 176 page

AT89C5131

4136B–USB–09/03

Programmable LED

AT89C5131 have up to 4 programmable LED current sources, configured by the regis-

ter LEDCON.

Reset Value = 00h

Table 72. LEDCON Register

LEDCON (S:F1h)

LED Control Register

7654

3210

LED3

LED2

LED1

LED0

Bit

Number

Bit

Mnemonic

Description

7:6

LED3

Port/LED3 Configuration

Standard C51 Port

2 mA current source when P3.7 is O

4 mA current source when P3.7 is O

10 mA current source when P3.7 is O

5:4

LED2

Port/LED2 Configuration

Standard C51 Port

2 mA current source when P3.6 is O

4 mA current source when P3.6 is O

10 mA current source when P3.6 is O

3:2

LED1

Port/LED1 Configuration

Standard C51 Port

2 mA current source when P3.5 is O

4 mA current source when P3.5 is O

10 mA current source when P3.5 is O

1:0

LED0

Port/LED0 Configuration

Standard C51 Port

2 mA current source when P3.3 is O

4 mA current source when P3.3 is O

10 mA current source when P3.3 is O

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