 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
NX25P10 Datasheet(PDF) 8 Page - List of Unclassifed Manufacturers |
|
||||||||||||||||||||||||||||||
NX25P10 Datasheet(HTML) 8 Page - List of Unclassifed Manufacturers |
|
|
8 / 28 page  8 NexFlash Technologies, Inc. PRELIMINARY MKP-0009 Rev 6 NXSF040I-0405 04/04/05 © 1M / 2M / 4M-BIT SERIAL FLASH MEMORY with 40MHz SPI NX25P10, NX25P20 AND NX25P40 S7 S6 S5 S4 S3 S2 S1 S0 SRP (Reserved) BP2 BP1 BP0 WEL BUSY Status RegisterProtect (Non-volatile) Block Protect Bits (Non-volatile) Write Enable Latch Device Busy Erase Program or Write in Progress Figure 3. Status Register Bit Locations STATUS REGISTER The Read Status Register instruction can be used to provide status on the availability of the Flash memory array, if the device is write enabled or disabled, and the state of write protection. The Write Status Register instruction can be used to configure the devices write protection features. See Figure 3. BUSY BUSY is a read only bit in the status register (S0) that is set to a 1 state when the device is executing a Page Program, Sector Erase, Bulk Erase or Write Status Register instruc- tion. During this time the device will ignore further instruc- tions except for the Read Status Register instruction (see tW, tPP, tSE and tBE in AC Characteristics). When the program, erase or write status register instruction has completed, the BUSY bit will be cleared to a 0 state indicating the device is ready for further instructions. Write Enable Latch (WEL) Write Enable Latch (WEL) is a read only bit in the status register (S1) that is set to a 1 after executing a Write Enable Instruction. The WEL status bit is cleared to a 0 when the device is write disabled. A write disable state occurs upon power-up or after any of the following instructions: Write Disable, Page Program, Sector Erase, Bulk Erase and Write Status Register. Block Protect Bits (BP2, BP1, BP0) The Block Protect Bits (BP2, BP1, BP0) are non-volatile read/write bits in the status register (S4, S3, S2) that provide Write Protection control and status. Block Protect bits can be set using the Write Status Register Instruction (see tW in AC characteristics). All, none or a portion of the memory array can be protected from Program and Erase instructions (see table 2). The factory default setting for the Block Protection Bits is 0, none of the array protected. The Block Protect bits can not be written to if the Status Register Protect (SRP) bit is set to 1 and the Write Protect ( WP) pin is low. The NX25P20 and NX25P10 do not use BP2. Reserved Bits Status register bit locations 5 and 6 are reserved for future use. Current devices will read 0 for these bit locations. It is recommended to mask out the reserved bit when testing the Status Register. Doing this will ensure compatibility with future devices. Status Register Protect (SRP) The Status Register Protect (SRP) bit is a non-volatile read/ write bit in the status register (S7) that can be used in conjunction with the Write Protect ( WP) pin to disable writes to the status register. When the SRP bit is set to a 0 state (factory default) the WP pin has no control over the status register. When the SRP pin is set to a 1, the Write Status Register instruction is locked out while the WP pin is low. When the WP pin is high the Write Status Register instruc- tion is allowed. |
Similar Part No. - NX25P10 |
|
Similar Description - NX25P10 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
