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| 型號： | SST89V54RD2A-33-C-TQJE |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | ROHS COMPLIANT, MS-026, TQFP-44 |
| 文件頁數(shù)： | 31/83頁 |
| 文件大?。?/td> | 1746K |
| 代理商： | SST89V54RD2A-33-C-TQJE |
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Data Sheet
FlashFlex51 MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
SST89V54RD2A/RDA / SST89V58RD2A/RDA
37
2006 Silicon Storage Technology, Inc.
S71339-00-000
12/06
4.2.4.1 Chip-Erase
The Chip-Erase command erases all bytes in both memory
blocks. This command is only allowed when EA#=0 (exter-
nal memory execution). Additionally this command is not
permitted when the device is in level 4 locking. In all other
instances, this command ignores the Security Lock status
and will erase the security lock bits and re-map bits.
FIGURE
4-1: Chip-Erase
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. For
SST89x5xRD2A/RDA, if SFAH[7] = 0b, the primary flash
memory Block 0 is selected. If SFAH[7:4] = EH, the sec-
ondary flash memory Block 1 is selected. The Block-Erase
command sequence for SST89x5xRD2A/RDA is as fol-
lows:
FIGURE
4-2: Block-Erase
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.
FIGURE
4-3: Sector-Erase
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
1339 F08.0
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
1339 F09.0
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
1339 F10.0
IAP Enable
ORL SFCF, #40H
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SST89V54RD2RD | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V54RD2-RD | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V54RD-33-C-PI | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89V54RD-33-C-PIE | 功能描述:8位微控制器 -MCU 24KB+1KB 33MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| SST89V54RD-33-C-QIF | 功能描述:8位微控制器 -MCU 8-Bit 16K+8K Flash 33MHz 3/16-Bit Timer RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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