COP8SBR9/COP8SCR9/COP8SDR9
目录
1.0概述..................................................................................................................................... 1
2.0产品特点....................................................................................................................................................... 1
3.0框图.............................................................................................................................................. 2
4.0订购信息.................................................................................................................................... 2
5.0连接图................................................................................................................................... 6
6.0结构概述............................................................................................................................... 10
6.1降低EMI .................................................................................................................................... 10
6.2在系统编程和虚拟EEPROM .......................................... ............................ 10
6.3双时钟和时钟倍频............................................ .................................................. ... 10
6.4 TRUE在系统仿真............................................................................................................ 10
6.5建筑................................................................................................................................... 10
6.6指令集............................................................................................................................... 10
6.6.1主要指令集特点............................................................................................................. 10
6.6.2单字节/执行单周期代码........................................ ............................................... 10
6.6.3许多单字节，多功能说明...................................... ............................................ 10
6.6.4位电平控制................................................................................................................................ 11
6.6.5寄存器集....................................................................................................................................... 11
6.7包装/ PIN效率.............................................................................................................. 11
7.0绝对最大额定值....................................................................................................................... 12
8.0电气特性............................................................................................................................ 12
9.0引脚说明......................................................................................................................................... 17
9.1仿真连接................................................................................................................... 18
10.0功能描述.............................................................................................................................. 19
10.1 CPU寄存器................................................................................................................................. 19
10.2程序存储器........................................................................................................................... 19
10.3数据存储器.................................................................................................................................... 19
10.4数据存储器段夯扩............................................ ...................................... 19
10.4.1虚拟EEPROM .............................................................................................................................. 20
10.5选项寄存器............................................................................................................................. 20
10.6安全............................................................................................................................................ 21
10.7 RESET ................................................................................................................................................... 21
10.7.1外部复位................................................................................................................................. 22
10.7.2片欠压复位................................................................................................................. 22
10.8振荡电路...................................................................................................................... 24
10.8.1振荡器.......................................................................................................................................... 24
10.8.2时钟倍频.................................................................................................................................. 24
................................................................................................................................................................... 0
10.9控制寄存器....................................................................................................................... 25
10.9.1 CNTRL寄存器（地址X'00EE ） ....................................... .................................................. ........ 25
10.9.2 PSW寄存器（地址X'00EF ） ..................................................................................................... 25
10.9.3 ICNTRL寄存器（地址X'00E8 ） ....................................... .................................................. ....... 25
10.9.4 T2CNTRL寄存器（地址X'00C6 ） ....................................... .................................................. .... 25
10.9.5 T3CNTRL寄存器（地址X'00B6 ） ....................................... .................................................. .... 26
10.9.6 HSTCR寄存器（地址X'00AF ） ....................................... .................................................. ....... 26
10.9.7 ITMR寄存器（地址X'00CF ） ....................................... .................................................. ........... 26
11.0在系统编程........................................................................................................................... 27
11.1简介................................................................................................................................... 27
11.2功能描述.............................................................................................................. 27
11.3寄存器.......................................................................................................................................... 27
11.3.1 ISP地址寄存器..................................................................................................................... 27
11.3.2 ISP读取数据寄存器.................................................................................................................. 28
11.3.3 ISP写入数据寄存器................................................................................................................... 28
11.3.4 ISP写时序注册................................................................................................................ 28
11.4操纵之间来回FLASH存储器和Boot ROM ..................... 29
11.5强制执行为从引导ROM ............................................ ............................................. 29
11.6返回到Flash存储器，而无需硬件复位.......................................... ............. 30
11.7 MICROWIRE / PLUS ISP ........................................................................................................................三十
11.8用户的ISP和虚拟电子书
2
................................................................................................................ 30
11.9限制软件的时候调用BOOT ROM ISP例程....................... 32
11.10闪存耐久性注意事项............................................. ........................... 32
12.0定时器....................................................................................................................................................... 34
12.1定时器T0 （空闲时间） ...................................................................................................................... 34
3
www.national.com
QQ：2880707522 复制
