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MG87FE/L2051/4051/6051
前期，V 1.03
内容
1.
2.
3.
4.
5.
概述................................................ ..................................... 4
产品特点.......................................................................................................五
块Diagram.............................................................................................. 6
针Configurations........................................................................................ 7
4.1 。包装说明.............................................................................................................. 7
4.2 。引脚说明（ PDIP - 20 & SOP- 20 ） ....................................... ............................................. 8
8051 CPU功能说明.............................................. ..................... 9
5.1 。 CPU寄存器........................................................................................................................ 9
5.2 。中央处理器Timing......................................................................................................................... 10
5.3 。 CPU的寻址模式....................................................................................................... 10
6.
7.
8.
存储器结构................................................ ................................. 11
6.1 。片上程序闪存...................................................................................................... 11
6.2 。片内数据RAM ............................................................................................................. 12
特殊功能寄存器............................................... ........................... 13
7.1 。 SFR Map............................................................................................................................. 13
7.2 。 SFR位Assignment............................................................................................................ 14
可配置的I / O端口............................................. ................................... 16
8.1 。 IO Structure......................................................................................................................... 16
8.1.1 。端口1 /3/4 GPIO结构........................................... .................................................. 16
8.2 。端口1注册..................................................................................................................... 16
8.3 。接口3注册..................................................................................................................... 16
8.4 。端口4注册..................................................................................................................... 17
9.
Interrupt...................................................................................................... 18
9.1 。中断结构............................................................................................................... 18
9.2 。中断寄存器................................................................................................................ 19
10 。 Timers/Counters......................................................................................... 23
10.1 。定时器0和Timer1.............................................................................................................. 23
10.1.1 。模式0 Structure.......................................................................................................... 23
10.1.2 。模式1 Structure.......................................................................................................... 23
10.1.3 。模式2 Structure.......................................................................................................... 24
10.1.4 。模式3 Structure.......................................................................................................... 24
10.1.5 。定时器0 / 1 Register......................................................................................................... 25
10.2 。 PWM-Timer......................................................................................................................... 27
10.2.1 。 PWM定时器Structure................................................................................................... 27
10.2.2 。 PWM定时器寄存器.............................................. .................................................. .... 28
11. UART .........................................................................................................三十
11.1 。 UART Structure...................................................................................................................三十
11.2 。 UART Register.................................................................................................................... 31
12.模拟比较器.............................................. ...................................... 33
12.1 。模拟比较器结构............................................... .............................................. 33
12.2 。模拟比较器寄存器............................................... ............................................... 34
13.看门狗定时器（ WDT ） .......................................... .................................. 35
13.1 。 WDT结构.................................................................................................................... 35
13.2 。 WDT注册..................................................................................................................... 35
本文档的信息是笙泉科技的知识产权。
笙泉科技有限公司2009年版权所有。
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