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AT89LP213 / 214 [初步]
目录
1.
2.
说明................................................. 1 ..............................................
引脚配置................................................ ..................................... 2
2.1
2.2
AT89LP213 ： 14引脚TSSOP / PDIP .......................................... ............................ 2
AT89LP214 ： 14引脚TSSOP / PDIP .......................................... ............................ 2
3.
4.
5.
引脚说明................................................ ......................................... 3
框图................................................ .......................................... 5
相较于标准8051 .............................................. .................. 6
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
系统时钟.......................................................................................................6
指令Execution7 / 06与单周期取指......................................... 6 .....
中断处理................................................ ................................................. 6
定时器/计数器....................................................................................................6
串行端口............................................................................................................6
看门狗定时器................................................ .................................................. 0.7
I / O端口...............................................................................................................7
重置....................................................................................................................7
6.
存储器结构................................................ .............................. 7
6.1
6.2
程序存储器................................................ ................................................. 7
数据存储器........................................................................................................8
7.
8.
9.
特殊功能寄存器............................................... ...................... 9
增强的CPU ................................................ ....................................... 10
8.1
限制某些指令.............................................. ..................... 11
系统时钟................................................ ......................................... 12
9.1
9.2
9.3
9.4
晶体振荡器................................................ ................................................ 12
外部时钟源............................................... ......................................... 12
内部RC振荡器............................................... .......................................... 12
系统时钟输出............................................... ............................................... 12
10.复位....................................................................................................... 13
10.1上电复位............................................. .................................................. ..13
10.2欠压复位............................................. .................................................. 0.15
10.3外部复位....................................................................................................15
10.4看门狗复位............................................... .................................................. 16
10.5软件复位...................................................................................................16
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3538A–MICRO–7/06
