manuais Atmel C51

Atmel C51 Manual (70 páginas)

Marca: Atmel | Categoria: Geradores de energia | Tamanho: 1.07 MB |

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Atmel 8051 Microcontrollers

Hardware Manual

Section 1

Section 2

Table of Contents

1.2 Addressing

1.3 Arithmetic

1.4 Logical

1.5 Data Transfers

The 8051 Instruction Set

1.8 Boolean

Instructions

1.9 Jump

Rev. 4316A–8051–01/04

Common Features Description

2.2 Special Function

Registers

Note: Reserved

2.3 Oscillator and

Clock Circuit

2.4 CPU Timing

2.5 Port Structures

2.6 Accessing

External Memory

4316A–8051–01/04

TCON reg

TMOD reg

Reset Value = 0000 0000b

Bit addressable

Table 2-17. SCON Register

Baud Rate Selection for

UART for Mode 1 and 3

2.14 Framing Error

Detection

Table 2-21. SADDR Register

Not bit addressable

UART Registers

Table 2-27. T2CON Register

Regional Headquarters

Atmel C51 Ficha Técnica (34 páginas)

Marca: Atmel | Categoria: Geradores de energia | Tamanho: 0.64 MB |

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Continued

Microcontroller

Pin Description

Pin Configurations

Block Diagram

Special Function Registers

Data Memory - RAM

Programmable Watchdog Timer

Timer 0 and 1

Figure 3

Figure 4

Baud Rate Generator

Serial Peripheral Interface

8-BIT SHIFT REGISTER

Interrupts

Oscillator Characteristics

Idle Mode

Power Down Mode

Program Memory Lock Bits

Lock Bit Protection Modes

Programming the Flash

Programming Interface

Serial Downloading

Instruction Set

4. “X” = don’t care

= 0°C to 70°C, V

= 5.0V ± 10%

Serial Downloading Waveforms

Absolute Maximum Ratings*

DC Characteristics

AC Characteristics

External Clock Drive

Float Waveforms

(power down)

2. Lock bits programmed

Ordering Information

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