W78E054D/W78E052D/W78E051D规格书
8位微控制器
Publication Release Date
：
July 1, 2009
- 1 - Revision
：
SC5
目录
-
1 概述............................................................................................................................................. 4
2 产品型号信息............................................................................................................................... 5
2.1 无铅(RoHS)产品型号信息表列........................................................................................ 5
3 管脚配置...................................................................................................................................... 6
4 管脚描述...................................................................................................................................... 8
5 方块图.......................................................................................................................................... 9
6 功能描述.................................................................................................................................... 10
6.1 片内 EPROM................................................................................................................. 10
6.2 I/O 口............................................................................................................................. 10
6.3 串行口 ........................................................................................................................... 10
6.4 定时器 ........................................................................................................................... 10
6.5 中断............................................................................................................................... 10
6.6 数据指针........................................................................................................................ 10
6.7 CPU结构 ....................................................................................................................... 10
6.7.1 ALU .................................................................................................................................11
6.7.2 Acc ..................................................................................................................................11
6.7.3 B 寄存器..........................................................................................................................11
6.7.4 程序状态字寄存器(PSW).................................................................................................11
6.7.5 堆栈指针..........................................................................................................................11
6.7.6 片内便签..........................................................................................................................11
7 内存组织.................................................................................................................................... 12
7.1 程序存储器.................................................................................................................... 12
7.2 寄存器的映射 ................................................................................................................ 12
7.2.1 工作寄存器......................................................................................................................13
7.2.2 位寻址区..........................................................................................................................14
7.2.3 堆栈.................................................................................................................................14
8 特殊功能寄存器......................................................................................................................... 15
8.1 特殊功能寄存器细部列表描述....................................................................................... 17
9 指令........................................................................................................................................... 30
10 指令时序.................................................................................................................................... 38
11 电源管理.................................................................................................................................... 39
11.1 空闲模式........................................................................................................................ 39
11.2 掉电模式........................................................................................................................ 39
12 复位条件.................................................................................................................................... 40
