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W742C814 PDF预览

W742C814

更新时间: 2024-11-16 21:55:47
品牌 Logo 应用领域
华邦 - WINBOND 微控制器
页数 文件大小 规格书
46页 699K
描述
4 BIT MICROCONTROLLER

W742C814 数据手册

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W742C814  
4-BIT MICROCONTROLLER  
Table of Contents-  
1.  
2.  
3.  
4.  
5.  
6.  
GENERAL DESCRIPTION .............................................................................................................3  
FEATURES .....................................................................................................................................3  
PIN CONFIGURATION...................................................................................................................4  
PIN DESCRIPTION.........................................................................................................................5  
BLOCK DIAGRAM ..........................................................................................................................6  
FUNCTIONAL DESCRIPTION .......................................................................................................7  
6.1  
6.2  
6.3  
Program Counter (PC)......................................................................................................7  
Stack Register (STACK)...................................................................................................7  
Program Memory (ROM) ..................................................................................................7  
6.3.1 ROM Page Register (ROMPR) .................................................................................. 8  
6.4  
Data Memory (RAM).........................................................................................................9  
6.4.1 Architecture................................................................................................................ 9  
6.4.2 Page Register (PAGE)............................................................................................... 9  
6.4.3 WR Page Register (WRP)........................................................................................ 10  
6.4.4 Data Bank Register (DBKR)..................................................................................... 10  
6.5  
6.6  
6.7  
6.8  
6.9  
6.10  
6.11  
Accumulator (ACC).........................................................................................................11  
Arithmetic and Logic Unit (ALU) .....................................................................................11  
Oscillator.........................................................................................................................11  
Dividers...........................................................................................................................12  
Dual-clock Operation ......................................................................................................12  
WatchDog Timer (WDT) and WatchDog Timer Register (WDTR).................................13  
Timer/Counter.................................................................................................................15  
6.11.1 Timer 0 (TM0) ........................................................................................................ 15  
6.11.2 Timer 1 (TM1) ........................................................................................................ 16  
6.11.3 Mode Register 0 (MR0).......................................................................................... 18  
6.11.4 Mode Register 1 (MR1) & MFP Control Pin (BUZCR) ........................................... 18  
6.12  
6.13  
Interrupts.........................................................................................................................19  
Stop Mode Operation......................................................................................................20  
6.13.1 Stop Mode Wake-up Enable Flag for RC Port (SEF)............................................. 20  
6.14  
Hold Mode Operation......................................................................................................21  
6.14.1 Hold Mode Release Enable Flag (HEF)................................................................. 22  
6.14.2 Interrupt Enable Flag (IEF)..................................................................................... 22  
Publication Release Date: February 12, 2003  
- 1 -  
Revision A2  

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