 |
Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
|
Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
SST89E58RD2-33-C-TQJ Datasheet(PDF) 42 Page - Silicon Storage Technology, Inc |
|
||||||||||||||||||||||||||||||
SST89E58RD2-33-C-TQJ Datasheet(HTML) 42 Page - Silicon Storage Technology, Inc |
|
|
42 / 91 page  42 Preliminary Specifications FlashFlex51 MCU SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2 SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2 ©2004 Silicon Storage Technology, Inc. S71255-00-000 3/04 4.2.4.7 Prog-SC0, Prog-SC1 Prog-SC0 command is used to program the SC0 bit. This command only changes the SC0 bit and has no effect on BSEL bit until after a reset cycle. SC0 bit previously in un-programmed state can be pro- grammed by this command. The Prog-SC0 command should reside only in Block 1 or external code memory. Prog-SC1 command is used to program the SC1 bit. This command only changes the SC1 bit and has no effect on SFCF[1] bit until after a reset cycle. SC1 bit previously in un-programmed state can be pro- grammed by this command. The Prog-SC1 command should reside only in Block 1 or external code memory. 4.2.4.8 Enable-Clock-Double Enable-Clock-Double command is used to make the MCU run at 6 clocks per machine cycle. The standard (default) is 12 clocks per machine cycle (i.e. clock double command disabled). There are no IAP counterparts for the external host com- mands Select-Block0 and Select-Block1. 4.2.5 Polling A command that uses the polling method to detect flash operation completion should poll on the FLASH_BUSY bit (SFST[2]). When FLASH_BUSY de-asserts (logic 0), the device is ready for the next operation. MOVC instruction may also be used for verification of the Programming and Erase operation of the flash memory. MOVC instruction will fail if it is directed at a flash block that is still busy. 4.2.6 Interrupt Termination If interrupt termination is selected, (SFCM[7] is set), then an interrupt (INT1) will be generated to indicate flash opera- tion completion. Under this condition, the INT1 becomes an internal interrupt source. The INT1# pin can now be used as a general purpose port pin and it cannot be the source of External Interrupt 1 during in-application programming. In order to use an interrupt to signal flash operation termi- nation. EX1 and EA bits of IE register must be set. The IT1 bit of TCON register must also be set for edge trigger detection. . Program SC0 or SC1 - Interrupt scheme MOV SFCM, #89H Program SC0 or SC1 - Polling scheme MOV SFCM, #09H INT1# Interrupt indicates completion Polling SFST[2] indicates completion 1255 F14.0 IAP Enable ORL SFCF, #40H Set-up Program SC1 MOV SFAH, #0AAH MOV SFDT, #0AAH Set-up Program SC0 MOV SFAH, #5AH MOV SFDT, #0AAH Program Enable-Clock-Double Interrupt scheme MOV SFCM, #88H Program Enable-Clock-Double Polling scheme MOV SFCM, #08H INT1# Interrupt indicates completion Polling SFST[2] indicates completion 1255 F15.0 IAP Enable ORL SFCF, #40H Set-up Enable-Clock-Double MOV SFAH, #55H MOV SFDT, #0AAH |
Número de pieza similar - SST89E58RD2-33-C-TQJ |
|
Descripción similar - SST89E58RD2-33-C-TQJ |
|
|
Enlace URL |
| Política de Privacidad |
| ALLDATASHEET.ES |
| ¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |
Spanish ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
