參數(shù)資料
型號： W921C840
英文描述： Microcontroller
中文描述： 微控制器
文件頁數(shù)： 1/53頁
文件大小： 394K
代理商： W921C840
W921E400A/W921C400
4-BIT MICROCONTROLLER
Publication Release Date: July 1998
- 1 -
Revision A3
Table of Contents-
1. GENERAL DESCRIPTION.........................................................................................................................3
2. FEATURES.................................................................................................................................................3
3. PIN CONFIGURATION...............................................................................................................................5
4. PIN DESCRIPTION.....................................................................................................................................6
5. BLOCK DIAGRAM......................................................................................................................................7
6. FUNCTION DESCRIPTION........................................................................................................................8
6.1 ROM Memory Map ..............................................................................................................................8
6.2 RAM Memory Map...............................................................................................................................9
6.2.1 Special Control Register Area....................................................................................................9
6.2.2 Stack Register Area.................................................................................................................11
6.2.3 Working Register Area.............................................................................................................12
6.3 Internal Oscillator Circuit.....................................................................................................................12
6.4 Initial State .........................................................................................................................................13
6.5 Input/Output........................................................................................................................................13
6.5.1 Normal/Special function selection of I/O...................................................................................14
6.5.2 Pull High and Open Drain Control of I/O ..................................................................................15
6.6 Serial Port..........................................................................................................................................18
6.7 DTMF Generator................................................................................................................................20
6.8 Beep Tone Generator........................................................................................................................22
6.9 Comparator........................................................................................................................................22
6.10 Timer/Counter..................................................................................................................................24
6.10.1 TM0.......................................................................................................................................24
6.10.2 TM2.......................................................................................................................................26
6.10.3 TM3.......................................................................................................................................28
6.10.4 Arbitrary Waveform Generator...............................................................................................29
6.11 Interrupt............................................................................................................................................30
6.11.1 Interrupt Control Register.......................................................................................................30
6.11.2 Interrupt Enable Flag .............................................................................................................31
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W921C880 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller
W921E400 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E400A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E840 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W921E840A 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
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