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參數(shù)資料
| 型號(hào)： | W79E803A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁(yè)數(shù)： | 13/115頁(yè) |
| 文件大小： | 1456K |
| 代理商： | W79E803A |
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W79E804A/803A/802A
Publication Release Date: July 16, 2007
- 13 -
Revision A2
ON-CHIP CODE MEMORY
PART NO.
EPROM
FLASH SIZE
START ADDRESS
END ADDRESS
W79E804
8KB
0000h
1FFFh
W79E803
4KB
0000h
0FFFh
W79E802
2KB
0000h
07FFh
Table
7-1: On-chip code memory address
7.3 Register Map
As mentioned before the W79E804 series have separate Program and Data Memory areas. The on-
chip
256
bytes scratch pad RAM is in addition to the external memory. There are also several Special
Function Registers (SFRs) which can be accessed by software. The SFRs can be accessed only by
direct addressing, while the on-chip RAM can be accessed by either direct or indirect addressing.
Indirect
RAM
Addressing
Direct
&
Indirect
RAM
Addressing
SFR
Direct
Addressing
Only
00H
7FH
80H
FFH
RAM and SFR Data Memory Space
Figure
7-2: W79E804 series RAM and SFR memory map
Since the scratch-pad RAM is only
256
bytes it can be used only when data contents are small. There
are several other special purpose areas within the scratch-pad RAM. These are described as follows.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W79E803ADG | 8-BIT MICROCONTROLLER |
| W79E803ASG | 8-BIT MICROCONTROLLER |
| W79E804 | 8-BIT MICROCONTROLLER |
| W79E804A | 8-BIT MICROCONTROLLER |
| W79E804ADG | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W79E803ADG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E803ASG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E804 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E804A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E804ADG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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