 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
PC87591L Datasheet(PDF) 219 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
PC87591L Datasheet(HTML) 219 Page - National Semiconductor (TI) |
|
|
219 / 437 page  Embedded Controller Modules (Continued) Revision 1.07 219 www.national.com 4.16.2 Functional Description The flash is byte accessible for reads and writes; it is erased in pages. Its organization is optimized for the PC87591x target application and security needs. Table 29 summarizes the various flash size parameters. Table 29. PC87591x Flash Organization Flash Protection The flash is partitioned into separate areas to protect the contents. Section 4.16.6 on page 226 provides details of the Main Block and Information Block protection mechanisms, respectively. The main protected areas are: ● Main Block — Core Boot Block - an area dedicated for the core boot code and protected from corruption by the CR or host. — Host Boot Block - an area dedicated for host boot code and protected from corruption by the host. — Other parts - optionally protected by software ● Information Block — Factory Parameters - hold various parameters and calibration information defined during PC87591x production; pro- tected from all alterations. — Protection Word - information about the flash data protection that may restrict accessing, writing and/or erasing all or parts of the flash. — Other parts - software-controlled read and write protection. Main Block (Base Memory) Information Block Size1 1. See “Accessing Base Memory” on page 35 for the mapping of the memory blocks in the core address space. Organization2 2. The memory width should be used for correct configuration of the BIU to enable cycle-by-cycle compatibility between on-chip and off-chip Base Memory. Page Size Access Width Access Time Control Size Page Size Access Width 64 Kbytes3 3. Block Size is 4 Kbytes only in PC87591L devices. 32Kx16 (Section 0) 512 bytes byte/word SZCFG1 64x16 (Section 0) 128 bytes byte/word 64 Kbytes4 4. This Main Block is available in PC87591S devices only. 32Kx16 (Section 1) 512 bytes byte/word SZCFG1 64x16 (Section 1) 128 bytes byte/word |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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
