Electronic Components Datasheet Search |
|
M58BW016BT80ZA6T Datasheet(PDF) 10 Page - STMicroelectronics |
|
M58BW016BT80ZA6T Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 63 page M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB 10/63 Block Protection The M58BW016B features four different levels of block protection. The M58BW016D has the same block protection with the exception of the Tuning Block Protection, which is disabled in the factory. s Write Protect Pin, WP, - When WP is low, VIL, all the lockable parameter blocks (two upper (Top ) or lower (Bottom)) and all the main blocks are protected. When WP is high (VIH) all the lockable parameter blocks and all the main blocks are unprotected. s Reset/Power-Down Pin, RP, - If the device is held in reset mode (RP at VIL), no program or erase operations can be performed on any block. s Tuning Block Protection: M58BW016B features a 64 bit password protection for program and erase operations for a fixed number of blocks After power-up or reset the device is tuning protected. An Unlock command is provided to allow program or erase operations in all the blocks. After a device reset the first two kinds of block pro- tection (WP, RP) can be combined to give a flexi- ble block protection. They do not affect the Tuning Block Protection. When the two protections are disabled, WP and RP at VIH, the blocks locked by the Tuning Block Protection cannot be modified. All blocks are protected during power-up. Tuning Block Protection. The Tuning Block Protection is a software feature to protect certain blocks from program or erase operations. It allows the user to lock program and erase operations with a user definable 64 bit code. It is only available on the M58BW016B version. The code is written once in the Tuning Protection Register and cannot be erased. When shipped the flash memory will have the Tuning Protection Code bits set to ‘1'. The user can program a ‘0’ in any of the 64 positions. Once programmed it is not possible to reset a bit to ‘1’ as the cells cannot be erased. The Tuning Protection Register can be programmed at any moment (after providing the correct code), however once all bits are set to ‘0’ the Tuning Protection Code can no longer be al- tered. The Tuning Protection Code locks the program and erase operations of 2 parameter and 24 main blocks, blocks 0, 1 and 15-38 for the bottom con- figuration and the blocks 0-23, 37 and 38 for the top configuration. The tuning blocks are "locked" if the tuning protec- tion code has not been provided, and “unlocked" once the correct code has been provided. The tun- ing blocks are locked after reset or power-up. The tuning protection status can be monitored in the Status Register. Refer to the Status Register sec- tion. Refer to the Command Interface section for the Tuning Protection Block Unlock and Tuning Pro- tection Program commands. See Appendix B, Fig- ure 25, 26 and 27 for suggested flowcharts for using the Tuning Block Protection commands. For further information on the Tuning Block Protection refer to Application Note, AN1361. |
Similar Part No. - M58BW016BT80ZA6T |
|
Similar Description - M58BW016BT80ZA6T |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |