 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
M24LR64E-R 数据表(PDF) 102 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
M24LR64E-R 数据表(HTML) 102 Page - STMicroelectronics |
|
|
102 / 140 page  Command codes M24LR64E-R 102/140 Doc ID 022712 Rev 3 When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that starts the Write-sector Password command to the end of the M24LR64E-R response. When configured in the RF write in progress mode, the RF WIP/BUSY pin is tied to 0 for the duration of the internal write cycle (from the end of a valid Write sector password command to the beginning of the M24LR64E-R response). 26.15 Lock-sector On receiving the Lock-sector command, the M24LR64E-R sets the access rights and permanently locks the selected sector. The Option_flag is supported. A sector is selected by giving the address of one of its blocks in the Lock-sector request (Sector number field). For example, addresses 0 to 31 are used to select sector 0 and addresses 32 to 63 are used to select sector 1. Care must be taken when issuing the Lock- sector command as all the blocks belonging to the same sector are automatically locked by a single command. The Protocol_extension_flag should be set to 1 for the M24LR64E-R to operate correctly. If the Protocol_extension_flag is at 0, the M24LR64E-R answers with an error code. During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%), otherwise the M24LR64E-R may not correctly lock the memory block. The Wt time is equal to t1nom + 18 × 302 µs. Figure 67. Write-sector Password frame exchange between VCD and M24LR64E-R VCD SOF Write- sector Password request EOF M24LR64E-R <-t1-> SOF Write-sector Password response EOF Write sequence when error M24LR64E-R <---------------- Wt -------------> SOF Write- sector Password response EOF Table 80. Lock-sector request format Request SOF Request _flags Lock- sector IC Mfg code UID(1) 1. Gray color means that the field is optional. Sector number Sector security status CRC16 Request EOF 8 bits B2h 02h 64 bits 16 bits 8 bits 16 bits |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
