Datasheet microcontrolador ma801

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MEGAWIN
MAKE YOU WIN

MA801

MA801 数据手册
版本 1.00

This document information is the intellectual property of Megawin Technology. © Megawin Technology Co., Ltd. 2009 All rights reserved.

QP-7300-03D

1/68

MEGAWIN
MAKE YOU WIN

MA801

目 录
1. 2. 3. 4. 5. 6. 概述 ..............................................................................................................5 功能..............................................................................................................6 引脚 ..............................................................................................................7
3.1. 封装 .......................................................................................................................................7 3.2. 引脚定义................................................................................................................................8

方框图...........................................................................................................9 特殊功能寄存器SFR ...................................................................................10
5.1. SFR映射表.........................................................................................................................10 5.2. SFR 位分配.........................................................................................................................11

8051 CPU 功能描述...................................................................................12
6.1. CPU 寄存器........................................................................................................................12 6.2. CPU 时序............................................................................................................................13 6.3. CPU 寻址方式.....................................................................................................................13

7.存储器结构..................................................................................................14
7.1. 片上程序存储器 ...................................................................................................................15 7.2. 片上数据存储器 RAM .........................................................................................................16 7.3. 关于C51 编译器的声明识别符 .............................................................................................178. 9.

双数据指针寄存器 (DPTR) .........................................................................18 I/O 结构......................................................................................................19
9.1. IO 配置................................................................................................................................19 9.1.1.准双向口........................................................................................................................19 9.1.2. 推挽输出........................................................................................................................19 9.1.3. 仅输入(高阻输入) ..........................................................................................................20 9.1.4. 开漏集输出....................................................................................................................20 9.2. I/O 端口寄存器....................................................................................................................21 9.2.1. 端口 1 ...........................................................................................................................22 9.2.2. 端口 3...........................................................................................................................22

10. 中断 ............................................................................................................23
10.1. 中断结构 ..............................................................................................................................23 10.2. 中断寄存器...
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