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參數(shù)資料
| 型號： | W78E58B-24 |
| 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, 24 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數(shù)： | 16/31頁 |
| 文件大?。?/td> | 419K |
| 代理商： | W78E58B-24 |
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W78E58B
- 16 -
Part 2: 4KB LDROM
Procedure of Updating
the 32KB APROM
Go
Timer Interrupt Service Routine:
Stop Timer & disable interrupt
Is F04KBOOT Mode
(CHPCON.7=1)
Reset the CHPCON Register:
MOV CHPENR,#87H
MOV CHPENR,#59H
MOV CHPCON,#03H
No
Yes
Setting Timer and enable Timer
interrupt for wake-up .
(15 ms for erasing operation)
Setting erase operation mode:
MOV SFRCN,#22H
(Erase 32KB APROM)
Start Timer and enter IDLE
Mode.
(Erasing...)
End of erase
operation. CPU will
be wakened by Timer
interrupt.
PGM
PGM
Setting Timer and enable Timer
interrupt for wake-up .
(50us for program operation)
End of Programming
Get the parameters of new code
(Address and data bytes)
through I/O ports, UART or
other interfaces.
Is currently in the
F04KBOOT Mode
Setting control registers for
programming:
MOV SFRAH,#ADDRESS_H
MOV SFRAL,#ADDRESS_L
MOV SFRFD,#DATA
MOV SFRCN,#21H
Software reset CPU and
re-boot from the 32KB
APROM.
MOV CHPENR,#87H
MOV CHPENR,#59H
MOV CHPCON,#83H
END
Executing new code
from address
00H in the 32KB APROM.
Hardware Reset
to re-boot from
new 32 KB APROM.
(S/W reset is
invalid in F04KBOOT
Mode)
Yes
No
Yes
No
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78E58B | 8 BIT MICROCONTROLLER |
| W78E58BF | 8 BIT MICROCONTROLLER |
| W78E58BP | 8 BIT MICROCONTROLLER |
| W78E58F-16 | 8-BIT MICROCONTROLLER |
| W78E58F-24 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78E58BF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W78E58BP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W78E58F-16 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58F-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78E58F-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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