AT90S1200

目录

Features................................................................................................. 1

引脚配置................................................ .................................. 1

说明................................................. ........................................... 2

框图......................................................................................................

针Descriptions....................................................................................................

水晶Oscillator...................................................................................................

片内RC振荡器............................................. ..............................................

2

3

3

4

结构概述................................................ ......................... 5

通用寄存器文件.............................................. ............................... 6

ALU - 算术逻辑单元............................................. ..................................... 6

在系统内可编程Flash程序存储器........................................... 6 ...

程序和数据寻址模式............................................. ..................... 7

子程序和中断硬件堆栈............................................. ............... 8

EEPROM数据存储器............................................... ......................................... 9

指令执行时间............................................... .................................. 9

I / O存储器......................................................................................................... 10

复位和中断处理.............................................. ................................ 12

睡觉Modes....................................................................................................... 19

定时器/计数器............................................... .................................... 20

定时器/计数器预分频器.............................................. ..................................... 20

看门狗定时器................................................ .................................. 23

EEPROM读/写访问............................................. ................ 25

防止EEPROM腐败............................................... .............................. 26

模拟比较................................................ ............................ 27

I / O端口.............................................. ................................................. 29

端口B.................................................................................................................. 29

端口D.................................................................................................................. 34

存储器编程................................................ ........................ 37

程序和数据存储器锁定位............................................ .....................

保险丝Bits.............................................................................................................

签名字节................................................ ..................................................

编程闪存和EEPROM ............................................. ..................

并行编程................................................ .........................................

并行编程特性............................................... .................

串行Downloading.............................................................................................

串行编程特性............................................... ....................

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i

0838H–AVR–03/02