MPC89LE51_52_53_54_58_515
8bit microcontroller
特性...............................................................................................................................................................................................2
引脚...............................................................................................................................................................................................3
1
2
2.1
2.1
引脚图 ............................................................................................................................................................................................................3
引脚定义 .......................................................................................................................................................................................................4
3
4
方框图 ..........................................................................................................................................................................................6
特殊功能寄存器 .........................................................................................................................................................................7
辅助寄存器AUXR和AUXR1....................................................................................................................................................................................8
存储器 ..........................................................................................................................................................................................9
5
5.1
RAM.................................................................................................................................................................................................................9
MPC89x54/58/515 RAM空间(007F可直接或间接寻址)......................................................................................................................9
MPC89x51/52/53 RAM空间..............................................................................................................................................................................10
5.2
FLASH .........................................................................................................................................................................................................10
MPC89x51 FlASH空间...........................................................................................................................................................................................11
MPC89x52 FlASH空间...........................................................................................................................................................................................11
MPC89x53 FlASH空间...........................................................................................................................................................................................11
MPC89x54 FlASH空间...........................................................................................................................................................................................12
MPC89x58 FlASH空间...........................................................................................................................................................................................12
MPC89x515 FlASH空间........................................................................................................................................................................................12
5.3
硬件选项寄存器......................................................................................................................................................................................13
6
功能描述 ................................................................................................................................................................................... 14
6.1
定时/计数器.............................................................................................................................................................................................14
T0 和T1 的四种模式.............................................................................................................................................................................................15
T2 的四种模式.........................................................................................................................................................................................................17
6.2
6.3
中断 ..............................................................................................................................................................................................................21
看门狗 .........................................................................................................................................................................................................23
看门狗时间计算:.....................................................................................................................................................................................................24
6.4
串口(UART) .............................................................................................................................................................................................25
模式 0...........................................................................................................................................................................................................................25
模式 1...........................................................................................................................................................................................................................25
模式 2...........................................................................................................................................................................................................................25
模式 3...........................................................................................................................................................................................................................25
地址自动识别...........................................................................................................................................................................................................26
帧错误检测................................................................................................................................................................................................................26
6.5
6.6
复位 ..............................................................................................................................................................................................................27
省电模式和掉电模式............................................................................................................................................................................27
IDLE模式.....................................................................................................................................................................................................................27
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product without notice.
© Megawin Technology Co., Ltd. 2008 All rights reserved.
version 1.00
MEGAWIN