 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
ST10F272 Datasheet(PDF) 41 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
ST10F272 Datasheet(HTML) 41 Page - STMicroelectronics |
|
|
41 / 179 page  ST10F272 Internal Flash memory 41/179 5.6 Write operation examples In the following, examples for each kind of Flash write operation are presented. Note: The write operation commands must be executed from another memory (internal RAM or external memory), as in ST10F269 device. In fact, due to IBus characteristics, it is not possible to perform write operation in Flash while fetching code from Flash. Moreover, direct addressing is not allowed for write accesses to IFlash control registers. This means that both address and data for a writing operation must be loaded in one of ST10 GPR register (R0...R15). Write operation on IBus registers is 16 bit wide. Example of indirect addressing mode MOV RWm, #ADDRESS; /*Load Add in RWm*/ MOV RWn, #DATA; /*Load Data in RWn*/ MOV [RWm], RWn; /*Indirect addressing*/ Word program Example: 32-bit Word Program of data 0xAAAAAAAA at address 0x025554 FCR0H|= 0x2000; /*Set WPG in FCR0H*/ FARL = 0x5554; /*Load Add in FARL*/ FARH = 0x0002; /*Load Add in FARH*/ FDR0L = 0xAAAA; /*Load Data in FDR0L*/ FDR0H = 0xAAAA; /*Load Data in FDR0H*/ FCR0H|= 0x8000; /*Operation start*/ Double word program Example: Double Word Program (64-bit) of data 0x55AA55AA at address 0x035558 and data 0xAA55AA55 at address 0x03555C in IFLASH Module. FCR0H |= 0x1000; /*Set DWPG/ FARL = 0x5558; /*Load Add in FARL*/ FARH = 0x0003; /*Load Add in FARH*/ FDR0L = 0x55AA; /*Load Data in FDR0L*/ FDR0H = 0x55AA; /*Load Data in FDR0H*/ FDR1L = 0xAA55; /*Load Data in FDR1L*/ FDR1H = 0xAA55; /*Load Data in FDR1H*/ FCR0H |= 0x8000; /*Operation start*/ Double Word Program is always performed on the Double Word aligned on a even Word: bit ADD2 of FARL is ignored. Sector erase Example: Sector Erase of sectors B0F1 and B0F0 of Bank 0 in IFLASH Module. FCR0H |= 0x0800; /*Set SER in FCR0H*/ FCR1L |= 0x0003; /*Set B0F1, B0F0*/ FCR0H |= 0x8000; /*Operation start*/ |
Similar Part No. - ST10F272 |
|
Similar Description - ST10F272 |
|
|
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
