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1、Command Name Command CodeNOP00HCFA REQUEST EXTENDED ERROR CODE03HDEVICE RESET08HREAD SECTOR(S)20HWRITE SECTOR(S)30HCFA WRITE SECTORS WITHOUT ERASE38HREAD VERIFY SECTOR(S)40HSEEK70HCFA TRANSLATE SECTOR87HEXECUTE DEVICE DIAGNOSTIC90HEXECUTE DEVICE PARAMETERS91HDOWNLOAD MICRCODE92HPACKETA0HIDENTIFY PAC
2、KET DEVICEA1HSERVICEA2HSMARTB0HCFA ERASE SECTORSC0HREAD MULTIPLEC4HWRITE MULTIPLEC5HSET MULTIPLE MODEC6HREAD DMA QUEUEDC7HREAD DMAC8HWRITE DMACAHWRITE DMA QUEUEDCCHCFA WRITE MULTIPLE WITHOUT ERASECDHGET MEDIA STATUSDAHMEDIA LOCKDEHMEDIA UNLOCKDFHSTANDBY IMMEDIATEE0HIDLE IMMEDIATEE1HSTANDBYE2HIDLEE3H
3、READ BUFFERE4HCHECK POWER MODEE5HSLEEPE6HFLUSH CACHEE7HWRITE BUFFERE8HIDENTIY DEVICEECHMIDIA EJECTEDHSET FEATURESEFHSECURITY SET PASSWORDF1HSECURITY UNLOCKF2HSECURITY ERASE PREPAREF3HSECURITY ERASE UNITF4HSECURITY FREEZE LOCKF5HSECURITY DISABLE PASSWORDF6HREAD NATIVE MAX ADDRESSF8HSET MAX ADDRESSF9H
4、ATAPI COMMAND CODECOMMAND DESCRIPTIONOPCODEFORMAT UNIT04HFLUSH CASHE35HGET EVENT STATUS NOTIFICATION4AHINQUIRY12HLOAD/UNLOAD C/DVDA6HMECHANISM STATUSBDHMODE SELECT (10)55HMODE SENSE (10)5AHPAUSE/RESUME4BHPLAY AUDIO (10)45HPLAY AUDIO MSF47HPLAY CDBCHPREVENT/ALLOW MEDIUM REMOVAL1EHREAD(12)A8HREAD C/DV
5、D CAPACITY25HREAD CDBEHREAD CD MSFB9HREAD DISC INFORMATION51HREAD DVD STRUCTUREADHREAD FORMATTED CAPACITIES23HREAD HEADER44HREAD SUBCHANNEL42HREAD TOC/PMA/ATTP43HREAD TRACK INFORMATION52HREPORT KEYA4HREQUEST SENSE03HSCANBAHSEEK2BHSEND KEYA3HSET READ AHEADA7HSTART STOP UNIT1BHSTOP PLAY /SCAN4EHTEST U
6、NIT READY00HVERIFY(12)AFHWRITE DVD STRUCTUREBFHWRITE (12)AAHWRITE AND VERIFY (12)AEH1F7H/177H Status Register76543210BSYDRDYDFDSCDRQCORRIDXERRBSY : DEVICE IS BUSYDRDY : DEVICE READYDF : DEVICE DEFAULTDSC : DEVICE SEEK COMPLETEDRQ : DATA REQUESTCORR : IDX : ERR : ERROR1F1H/171H Error Register76543210
7、ICRCWPMCIDNFMCRABRTNMMEDICRC : AN INTERFACE CRC HAS OCCUR DURING ULTRA DMA TRANSFERWP/UNC : WRITE PROTECT/UNCORRECTABLEMC : MEDIA CHANGEIDNF : shall be set to one if a user-accessible address could not be found and after an unsuccessful INITIALIZE DEVICE PARAMETERS command until a valid CHS translat
8、ion is establishedMCR : MEDIA CHANGE REQUESTABRT : shall be set to one if this command is not supported or if an error, including an ICRC error, has occurred during an Ultra DMA data transfer. ABRT may be set to one if the device is not able to complete the action requested by the command. ABRT shall be set to one if an address outside of the range of user-accessible addresses is requested if IDNF is not set to one.NM : NO MEDIAMED : shall be set to one if a media error is detected.
