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| 型号： | SST89E554A-40-I-TQJ |
| 厂商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | MS-026ACB, TQFP-44 |
| 文件页数： | 32/87页 |
| 文件大小： | 996K |
| 代理商： | SST89E554A-40-I-TQJ |
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38
Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
4.2.4.2 Block-Erase
The Block-Erase command erases all bytes in one of the
two memory blocks (Block 0 or Block 1). The selection of
the memory block to be erased is determined by the
(SFAH[7]) of the SuperFlash Address Register. If SFAH[7]
= 0b, the primary flash memory Block 0 is selected. If
SFAH[7:4] = EH, the secondary flash memory Block 1 is
selected. The Block-Erase command sequence for
SST89x554A is as follows:
4.2.4.3 Sector-Erase
The Sector-Erase command erases all of the bytes in a
sector. The sector size for the flash memory blocks is 128
Bytes. The selection of the sector to be erased is deter-
mined by the contents of SFAH and SFAL.
Set-Up
MOV SFDT, #55H
Interrupt scheme
MOV SFCM, #81H
Polling scheme
MOV SFCM, #01H
INT1 interrupt
indicates completion
SFST[2] indicates
operation completion
IAP Enable
ORL SFCF, #40H
1228 F07.0
Set-Up
MOV SFDT, #55H
IAP Enable
ORL SFCF, #40H
OR
Interrupt scheme
MOV SFCM, #8DH
Polling scheme
MOV SFCM, #0DH
Erase Block 1
MOV SFAH, #F0H
Erase Block 0
MOV SFAH, #00H
INT1 interrupt
indicates completion
SFST[2] indicates
operation completion
1228 F08.0
Program sector address
MOV SFAH, #sector_addressH
MOV SFAL, #sector_addressL
Interrupt scheme
MOV SFCM, #8BH
Polling scheme
MOV SFCM, #0BH
INT1 interrupt
indicates completion
SFST[2] indicates
operation completion
1228 F09.0
IAP Enable
ORL SFCF, #40H
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST89E554RC | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-NI | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-NJ | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-PI | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89E554RC-25-C-PJ | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
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