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參數資料
| 型號： | W79E803ADG |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP20 |
| 封裝： | 0.300 INCH, ROHS COMPLIANT, DIP-20 |
| 文件頁數： | 105/115頁 |
| 文件大小： | 1456K |
| 代理商： | W79E803ADG |
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W79E804A/803A/802A
Publication Release Date: July 16, 2007
- 105 -
Revision A2
25. ICP (IN-CIRCUIT PROGRAM) FLASH PROGRAM
The contexts of flash in W79E804 series are empty by default. User must program the flash EPROM
by external Writer device or by ICP (In-Circuit Program) tool.
In the ICP tool, the user must take note of ICP’s program pins used in system board. In some
application circuits, the pins are located at P1.5, P0.4 and P0.5, as below figure. During ICP
programming, P1.5 must be set to high voltage (~10.5V), and keeping this voltage to update code,
data and/or configure CONFIG bits. After programming completion, the high voltage of P1.5 should be
released. So, it is highly recommended user power off then power on after ICP programming has
completed on the system board.
Upon entry into ICP program mode, all pin will be set to quasi-bidirectional mode, and output to level
“1”.
The W79E804 series support programming of Flash EPROM (
8K/4K/2K
bytes AP Flash EPROM) and
NVM data memory (
256
bytes). User has the option to program the AP flash and NVM either
individually or both.
Figure
25-1: Application Circuit of ICP
Note:
1. When using ICP to upgrade code, the P1.5, P0.4 and P0.5 must be taken within design system board.
2. After program finished by ICP, to suggest system power must power off and remove ICP connector then power on.
3.
It is recommended that user performs erase function and programming configure bits continuously without
any interruption.
相關PDF資料 |
PDF描述 |
|---|---|
| W79E803ASG | 8-BIT MICROCONTROLLER |
| W79E804 | 8-BIT MICROCONTROLLER |
| W79E804A | 8-BIT MICROCONTROLLER |
| W79E804ADG | 8-BIT MICROCONTROLLER |
| W79E804ASG | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| W79E804ASG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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