 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M58WR064HT Datasheet(PDF) 84 Page - Numonyx B.V |
|
|
|||||||||||||||||||||||||||||
M58WR064HT Datasheet(HTML) 84 Page - Numonyx B.V |
|
|
84 / 111 page  Common Flash Interface M58WR064HT, M58WR064HB 84/111 Appendix B Common Flash Interface The Common Flash Interface is a JEDEC approved, standardized data structure that can be read from the Flash memory device. It allows a system software to query the device to determine various electrical and timing parameters, density information and functions supported by the memory. The system can interface easily with the device, enabling the software to upgrade itself when necessary. When the Read CFI Query Command is issued the device enters CFI Query mode and the data structure is read from the memory. Tables 31, 32, 33, 34, 35, 36, 37, 38, 39 and 40 show the addresses used to retrieve the data. The Query data is always presented on the lowest order data outputs (DQ0-DQ7), the other outputs (DQ8-DQ15) are set to 0. The CFI data structure also contains a security area where a 64 bit unique security number is written (see Figure 4: Protection Register Memory Map). This area can be accessed only in Read mode by the final user. It is impossible to change the security number after it has been written by Numonyx. Issue a Read Array command to return to Read mode. Table 31. Query structure overview(1) 1. The Flash memory display the CFI data structure when CFI Query command is issued. In this table are listed the main sub-sections detailed in Tables 32, 33, 34 and 35. Query data is always presented on the lowest order data outputs. Offset Sub-section Name Description 00h Reserved Reserved for algorithm-specific information 10h CFI Query Identification String Command set ID and algorithm data offset 1Bh System Interface Information Device timing & voltage information 27h Device Geometry Definition Flash device layout P Primary Algorithm-specific Extended Query table Additional information specific to the Primary Algorithm (optional) A Alternate Algorithm-specific Extended Query table Additional information specific to the Alternate Algorithm (optional) 80h Security Code Area Lock Protection Register Unique device Number and User Programmable OTP |
Similar Part No. - M58WR064HT |
|
Similar Description - M58WR064HT |
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
