SD daim ntawv sau npe thiab ua haujlwm

OCR (kev khiav hauj lwm tej yam kev mob sau npe): lub 32- me ntsis kev khiav hauj lwm tej yam kev mob sau npe tsuas yog khaws cov VDD voltage ntau yam, thiab SD card kev khiav hauj lwm voltage ntau yog 2 ~ 3.6V.

CID (daim npav cim npe) sau npe: daim npav qhia tus lej sau npe, 16 bytes ntev, uas khaws cov cim cim ntawm SD daim npav, uas tsis tuaj yeem hloov kho tom qab tau tsim los ntawm cov chaw tsim khoom daim npav.

CSD (daim npav tshwj xeeb cov ntaub ntawv sau npe) sau npe: daim npav cim cov ntaub ntawv sau npe, uas muaj cov ntaub ntawv tsim nyog rau kev nkag mus rau daim npav cov ntaub ntawv.

SCR (SD daim npav configuration register): SD card configuration register (SCR) muab qee yam tshwj xeeb ntawm SD card. Hauv daim npav no, qhov ntev yog 64 ntsis. Cov ntsiab lus ntawm daim ntawv teev npe no yog tsim los ntawm cov chaw tsim khoom hauv lub hoobkas.

RCA (qhov chaw nyob ntawm tus txheeb ze) sau npe: daim npav txheeb ze chaw nyob sau npe yog 16 me ntsis sau npe chaw nyob. Tus maub los tuaj yeem xaiv daim npav SD nrog rau qhov chaw nyob los ntawm qhov chaw nyob.

DSR (driver stage register) sau npe: tus tsav tsheb theem sau npe yog ib qho kev xaiv sau npe siv los teeb tsa tus tsav tsheb tawm ntawm daim npav.

Interface maub los:

Nws yog tsuas yog siv los tswj thiab tswj lub hauv paus ntsiab lus, tswj thiab teeb tsa los ntawm kev txais cov lus txib xa los ntawm cov neeg siv, teb rau cov lus txib, thiab tom qab ntawd ua cov ntaub ntawv nyeem thiab sau cov haujlwm. Flash thaiv rau cov ntaub ntawv nco cia.