【W79E804A / 803A / 802A数据表8位微控制器表盒内的1.2.3.4.5.6.概述.】,IC型号W79E804ASG,W79E804ASG PDF资料,W79E804ASG经销商,ic,电子元器件-51电子网

W79E804A / 803A / 802A数据表

8位微控制器

表盒内的

概述......................................................................................................... 4

特点.................................................................................................................................五

配件信息列表..................................................................................................... 6

3.1

无铅（ RoHS）的零件信息列表.......................................... ............................... 6

引脚配置............................................................................................................... 7

PIN DESCRIPTION..................................................................................................................... 8

功能DESCRIPTION.................................................................................................... 9

6.1

片内Flash EPROM ............................................. .................................................. 9 ...

6.2

I / O Ports.......................................................................................................................... 9

6.3

串行I / O ......................................................................................................................... 9

6.4

计时器............................................................................................................................. 9

6.5

Interrupts......................................................................................................................... 9

6.6

数据指针................................................................................................................ 10

6.7

Architecture................................................................................................................... 10

6.7.1

6.7.2

6.7.3

6.7.4

6.7.5

6.7.6

ALU ................................................................................................................................10

累加器...................................................................................................................10

B Register.......................................................................................................................10

程序状态字： ....................................................................................................10

便签RAM ...........................................................................................................11

堆栈指针..................................................................................................................11

10.

11.

6.8

动力Management...................................................................................................... 11

记忆ORGANIZATION...................................................................................................... 12

7.1

程序存储器（片上闪存） .......................................... ....................................... 12

7.2

数据存储器................................................................................................................ 12

7.3

注册Map................................................................................................................. 13

7.4

工作Registers......................................................................................................... 15

7.5

位寻址Locations............................................................................................. 15

7.6

堆............................................................................................................................. 15

特殊功能寄存器............................................... .......................................... 16

指令SET.................................................................................................................. 45

9.1

指令Timing.......................................................................................................... 53

电源MANAGEMENT.......................................................................................................... 56

10.1空闲模式...................................................................................................................... 56

10.2掉电模式....................................................................................................... 56

RESET CONDITIONS............................................................................................................... 57

11.1来源reset............................................................................................................ 57

11.1.1

外部复位..............................................................................................................57

-1-

出版日期： 2007年7月16日

A2版

W79E804A/803A/802A

11.1.2

11.1.3

上电复位(POR)................................................................................................57

看门狗定时器Reset.................................................................................................57

12.

13.

11.2复位状态................................................................................................................... 57

中断........................................................................................................................... 60

12.1中断源.......................................................................................................... 60

12.2优先级结构.............................................. .................................................. 。 62

12.3回应Time............................................................................................................. 63

12.4中断Inputs.............................................................................................................. 64

可编程定时器/计数器.............................................. ................................. 66

13.1定时器/计数器0 & 1.................................................................................................... 66

13.1.1

13.1.2

13.1.3

13.1.4

13.1.5

时基选择....................................................................................................66

模式0 .........................................................................................................................66

模式1 .........................................................................................................................67

模式2 .........................................................................................................................68

模式3 .........................................................................................................................68

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

NVM记忆......................................................................................................................... 70

看门狗TIMER................................................................................................................. 71

15.1看门狗CONTROL.............................................................................................. 72

看门狗15.2时钟控制............................................. ..................................... 73

串口（ UART ） ............................................................................................................. 74

16.1 MODE 0 ........................................................................................................................ 74

16.2 MODE 1 ........................................................................................................................ 75

16.3 MODE 2 ........................................................................................................................ 77

16.4 MODE 3 ........................................................................................................................ 78

16.5帧错误检测.............................................. ................................................. 79

16.6多机通信............................................... .................................... 79

实时访问保护整............................................... ............................................... 81

键盘中断（ KBI ） ............................................. .................................................. 83

模拟比较器...................................................................................................... 84

I / O端口配置............................................. .................................................. .... 85

20.1准双向口输出配置............................................ ......................... 85

20.2开漏输出配置............................................. .................................... 86

20.3推挽输出配置............................................ ........................................ 87

20.4仅输入配置.............................................. ................................................. 87

振荡器........................................................................................................................... 88

21.1片内RC振荡器选项........................................... ............................................ 88

21.2外部时钟输入选项............................................. ............................................. 88

21.3 CPU时钟频率选择............................................. .................................................. .. 89

电源监视功能............................................... ......................................... 90

22.1开机Detect........................................................................................................... 90

22.2欠压检测........................................................................................................... 90

脉冲宽度调制（ PWM）输出......................................... .......................... 91

-2-

W79E804A/803A/802A

24.

I2C串行控制............................................................................................................ 95

24.1 SIO端口........................................................................................................................ 95

24.2 I2C控制寄存器： ............................................ ............................................... 96

24.2.1

24.2.2

24.2.3

24.2.4

24.2.5

地址寄存器， I2ADDR ............................................. ..................................... 96

数据寄存器， I2DAT ............................................. ............................................... 96

控制寄存器， I2CON ............................................. .......................................... 97

状态寄存器， I2STATUS ............................................. ...................................... 97

I2C时钟波特率位， I2CLK .......................................... ................................ 97

主发送器方式............................................... .............................................. 98

主机接收模式............................................... .................................................. 98

从机接收模式...................................................................................................99

从机发送模式............................................... ................................................ 99

24.3

操作模式...................................................................................................... 98

24.3.1

24.3.2

24.3.3

24.3.4

25.

26.

27.

28.

29.

在五种操作模式24.4数据传输流量.......................................... ..................... 99

ICP （在电路PROGRAM ）闪存程序......................................... ...................... 105

配置位......................................................................................................................... 106

26.1 CONFIG1 .................................................................................................................... 106

26.2 CONFIG2 .................................................................................................................... 107

电气CHARACTERISTICS....................................................................................... 108

27.1最大绝对额定值.............................................. .......................................... 108

27.2 DC电气特性.............................................. ...................... 108

27.3比较器电气特性........................................ 110

27.4 AC电气特性.............................................. ...................... 110

27.5外部时钟特性.............................................. .................. 110

27.6 AC规格............................................... .................................................. 。 111

27.7典型应用电路.............................................. ............................ 111

包装尺寸....................................................................................................... 112

28.1 20L SOP-300mil.......................................................................................................... 112

28.2 20L PDIP 300MIL ......................................................................................................... 113

修订历史.............................................................................................................. 114

-3-

出版日期： 2007年7月16日

A2版

W79E804A/803A/802A

1.概述

该W79E804系列是一个8位快速51微控制器，它具有在系统可编程

闪存EPROM的Flash EPROM可通过ICP编程（在电路编程）或

五金

作家。

该W79E804系列的指令集与标准8052的W79E804完全兼容

系列包含

8K/4K/2K

主Flash EPROM的字节;一

256

字节的RAM ;

256

字节NVM数据

闪存EPROM ; 2个8位双向， 1个2位双向可位寻址的I / O端口;两个16位

定时器/计数器; 4路10位PWM ;两个串行端口，包括一个I2C和一个增强型全双工

串行端口。这些外围设备都由12源4级中断能力的支持。为了方便

编程和校验时，Flash EPROM里面的W79E804系列允许程序

存储器进行编程和电读写。一旦代码确定后，用户可以保护

代码的安全性。

-4-

W79E804A/803A/802A

2.特点

全静态设计8位的Turbo 51的CMOS单片机高达20MHz时， VDD = 4.5V至5.5V ，

为12MHz时， VDD = 2.7V至5.5V

8K/4K/2K

美联社的Flash EPROM字节， ICP和外部作家可编程模式。

256

字节片上RAM 。

256

字节NVM数据Flash EPROM所使用的客户数据存储和10K作家周期。

指令集兼容MSC- 51 。

片上可配置的RC振荡器（ 6MHz的）。

两个8位双向和1个2位双向端口。

2个16位定时器/计数器。

12中断源， 4个优先级。

一个增强型全双工串口与帧错误检测和自动地址端口

识别。

4个输出模式和TTL /施密特触发器可选端口。

可编程看门狗定时器。

四通道10位PWM （脉冲宽度调制）。

一个I2C通信接口（主/从）。

8个键盘中断输入。

两个模拟比较器。

可配置的片内振荡器。

所有端口引脚的LED驱动能力（ 20mA）的。

低电压检测中断和复位。

开发工具：

—

JTAG ICE （在线仿真器）工具

—

ICP （在电路编程）作家

包：

—

无铅（ RoHS）的DIP 20 ：

—

无铅（ RoHS）的SOP 20 ：

—

无铅（ RoHS）的DIP 20 ：

—

无铅（ RoHS）的SOP 20 ：

—

无铅（ RoHS）的DIP 20 ：

—

无铅（ RoHS）的SOP 20 ：

W79E804ADG

W79E804ASG

W79E803ADG

W79E803ASG

W79E802ADG

W79E802ASG

-5-

出版日期： 2007年7月16日

A2版