 |
Moteur de recherche de fiches techniques de composants électroniques |
|
|
Moteur de recherche de fiches techniques de composants électroniques |
|
AT89C5131A-RDTUM Fiches technique(PDF) 34 Page - ATMEL Corporation |
|
|
|||||||||||||||||||||||||||||
AT89C5131A-RDTUM Fiches technique(HTML) 34 Page - ATMEL Corporation |
|
|
34 / 184 page  34 AT89C5130A/31A-M 4337C–USB–02/05 Hardware Security The following procedure is used to program the Hardware Security space and is sum- marized in Figure 17: • Set FPS and map Hardware byte (FCON = 0x0C) • Disable the interrupts. • Load DPTR at address 0000h. • Load Accumulator register with the data to load. • Execute the MOVX @DPTR, A instruction. • Launch the programming by writing the data sequence 54h followed by A4h in FCON register. The end of the programming indicated by the FBusy flag cleared. • Enable the interrupts. Figure 17. Hardware Programming Procedure Flash Spaces Programming Disable IT EA = 0 Launch Programming FCON = 54h FCON = A4h End Programming Enable IT EA = 1 FBusy Cleared? Erase Mode FCON = 00h Data Load DPTR = 00h ACC = Data Exec: MOVX @DPTR, A FCON = 0Ch |
|
Lien URL |
| ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Lien vers la fiche technique | Echange de liens | Fabricants 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 |
French ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
