参数资料
型号: AT45DB081D
厂商: Atmel Corp.
英文描述: 8-megabit 2.5-volt or 2.7-volt DataFlash
中文描述: 8兆位2.5伏或2.7伏的DataFlash
文件页数: 14/53页
文件大小: 1105K
代理商: AT45DB081D
14
3596E–DFLASH–02/07
AT45DB081D
9.1
Sector Protection Register
The nonvolatile Sector Protection Register specifies which sectors are to be protected or unpro-
tected with either the software or hardware controlled protection methods. The Sector Protection
Register contains 16 bytes of data, of which byte locations 0 through 15 contain values that
specify whether sectors 0 through 15 will be protected or unprotected. The Sector Protection
Register is user modifiable and must first be erased before it can be reprogrammed.
Table 9-3
illustrates the format of the Sector Protection Register.:
Note:
1. The default value for bytes 0 through 15 when shipped from Atmel
is 00H.
x = don’t care.
Table 9-2.
Sector Protection Register
Sector Number
0 (0a, 0b)
1 to 15
Protected
See
Table 9-3
FFH
Unprotected
00H
Table 9-3.
Sector 0 (0a, 0b)
0a
0b
Bit 3, 2
Data
Value
(Page 0-7)
(Page 8-255)
Bit 7, 6
Bit 5, 4
Bit 1, 0
Sectors 0a, 0b Unprotected
00
00
xx
xx
0xH
Protect Sector 0a
11
00
xx
xx
CxH
Protect Sector 0b (Page 8-255)
00
11
xx
xx
3xH
Protect Sectors 0a (Page 0-7), 0b
(Page 8-255)
(1)
11
11
xx
xx
FxH
相关PDF资料
PDF描述
AT45DB081D_07 8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D-MU 8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D-MU-2.5 8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D-SSU 8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D-SSU-2.5 8-megabit 2.5-volt or 2.7-volt DataFlash
相关代理商/技术参数
参数描述
AT45DB081D_07 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_08 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_09 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_13 制造商:AD 制造商全称:Analog Devices 功能描述:8-megabit 2.5V or 2.7V DataFlash
AT45DB081D-DWF 制造商:Adesto Technologies Corporation 功能描述:WHOLE WAFER, NO BACKGRIND - Gel-pak, waffle pack, wafer, diced wafer on film