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IDE interface

IDE interface

  • ÀÛ¼ºÀÚ
    Á¶ÀçÇõ (Mminzkn@minzkn.com)

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IDE register

  • Data register (1F0H, read/write)

  • Error register (1F1H, read)
    bit 7 6 5 4 3 2 1 0
    ÀÇ¹Ì BBK UNC MC IDNF MCR ABRT TK0NF AMNF
    BBK (Bad block detected) : ATA1¿¡¼­´Â ¿äûÇÑ ¼½ÅÍ°¡ ¿À·ùºí·°Àΰæ¿ì ¼³Á¤µÇÁö¸¸ ATA2¿¡¼­´Â ¿¹¾àÀ¸·Î µÇ¾î ÀÖ´Ù. UNC (Uncorrectable data error) : Data°¡ À߸øµÈ°ÍÀÌ ¹ß°ßµÇ¾úÀ»¶§ ¼³Á¤µÈ´Ù. ECC°Ë»ç½Ã ¼³Á¤µÉ¼ö ÀÖ´Ù. ÀÌ ºñÆ®°¡ ¼³Á¤µÇ¸é Data¸¦ ½Å·ÚÇÒ¼ö ¾ø´Ù. MC (Media change) : ¸Åü°¡ º¯°æ(±³Ã¼)µÇ¾úÀ» °æ¿ì ¼³Á¤µÈ´Ù. IDNF (ID not found) : Sector¸¦ ãÀ»¼ö ¾øÀ»¶§ ¼³Á¤µÇ¸ç ¾Æ¸¶µµ ½ÉÇÑ È¸¼ÕÀÌ µÇ´Â °æ¿ì¿¡ ¼³Á¤µÇ´Â°ÍÀ» È®ÀÎÇÒ¼ö ÀÖ´Ù. MCR (Media change requested) : ¿ÜºÎ·ÎºÎÅÍ ¸Åü¸¦ ±³Ã¼ÇÏ·Á´Â ½ÅÈ£¸¦ ¼ö½ÅÇßÀ»¶§ ¼³Á¤µÈ´Ù. Eject¹öÆ°°°Àº °æ¿ì°¡ ÀÌ¿¡ ÇØ´çÇÒ¼ö ÀÖ´Ù. ABRT (Aborted command) : Command¼öÇàÁß¿¡ ¿À·ù·Î ÀÎÇÏ¿© Interrupt µÇ¾î ÀÛ¾÷ÀÌ ÁßÁöµÇ¾ú´Ù. TK0NF (Track zero not found) : Track 0¹øÀ» ãÀ»¼ö ¾øÀ»¶§ ¼³Á¤µÈ´Ù. ÀÌ °æ¿ì°¡ ¹ß»ýÇÏ¸é ¸Å¿ì Ä¡¸íÀûÀÎ ¼Õ»óÀ» ÀÔÀº °æ¿ìÀÏ°ÍÀÌ´Ù. AMNF (Address mark not found) : ¿äûÇÑ SectorÀÇ ÁÖ¼Ò¸¦ ãÀ»¼ö ¾ø´Ù.

  • Feature register (1F1H, write)

  • Sector count register (1F2H, read/write)
    0Àº 256À¸·Î ÀνÄÇÑ´Ù. (0°³ÀÇ count´Â Àǹ̰¡ ¾øÀ¸¹Ç·Î)

  • Sector number register (1F3H, read/write)
    LBA modeÀÎ °æ¿ì LBAÁÖ¼ÒÀÇ 0~7bit

  • Cylinder number register (1F4H~1F5H, read/write)
    1F4H : Cylinder¹øÈ£Áß¿¡¼­ ÇÏÀ§ ¹ÙÀÌÆ® 1F5H : Cylinder¹øÈ£Áß¿¡¼­ »óÀ§ ¹ÙÀÌÆ® LBA modeÀÎ °æ¿ì LBAÁÖ¼ÒÁß¿¡¼­ 1F4H¿¡´Â 8~15bit, 1F5H¿¡´Â 16~23bit

  • Drive/Head number register (1F6H, read/write)
    bit 7 6 5 4 3 2 1 0
    ÀÇ¹Ì 1 LBA 1 DEV H3 H2 H1 H0
    LBA (LBA mode) : 0ÀÎ °æ¿ì Cylinder/Head/Sector ¹æ½Ä, 1ÀÎ °æ¿ì LBAÁÖ¼Ò¹æ½Ä DEV (Device) : Device¹øÈ£ (0Àº Master, 1Àº Slave) H3~0 (Head number) : Head¹øÈ£ (LBA modeÀÎ °æ¿ì LBAÁÖ¼ÒÁß¿¡¼­ 24~27bit)

  • Status register (1F7H, read)
    bit 7 6 5 4 3 2 1 0
    ÀÇ¹Ì BSY DRDY DF DSC DRQ CORR IDX ERR
    BSY (Busy) : ÀÌ bit°¡ ¼³Á¤µÇ¸é ¸í·ÉÀ» ó¸®Áß¿¡ ÀÖÀ½À» ÀǹÌÇÑ´Ù. DRDY (Drive ready) : µå¶óÀ̺갡 ¸í·ÉÀ» ¹ÞÀ» Áغñ°¡ µÇ¾úÀ»´ë ¼³Á¤µÈ´Ù. DF (Drive fault) : µå¶óÀ̺꿡 ¿¡·¯°¡ ¹ß°ßµÇ¸é ¼³Á¤µÈ´Ù. (ATA1¿¡¼­´Â Drive°¡ ¾²±â¿¡·¯»óÅÂÀ϶§¸¦ ³ªÅ¸³½´Ù.) DSC (Drive seek complete) : Head°¡ ¿äûÇÑ CylinderÀ§Ä¡¿¡ ³õ¿´À»¶§ ¼³Á¤µÈ´Ù. DRQ (Date request) : µå¶óÀ̺ê·ÎºÎÅÍ Data°¡ ¿äûµÇ´Â °æ¿ì ¼³Á¤µÈ´Ù. CORR (Corrected data) : Àбâ¿À·ù°¡ ¹ß»ýÇßÀ»¶§ ¼³Á¤µÇ¸ç ÀÌ °æ¿ì interrupt µÇÁö ¾Ê°í °è¼Ó ¼öÇàÇÏ´Â »óÅÂÀÎ °æ¿ìÀÌ´Ù. IDX (Index) : Index markÀ§·Î head°¡ Åë°úÇÒ¶§ ¼³Á¤µÈ´Ù. ERR (Error) : ¸í·É¼öÇà½Ã ¿¡·¯°¡ ¹ß»ýÇÏ¸é ¼³Á¤µÇ¾î ¿¡·¯¸¦ ³ªÅ¸³½´Ù. ¾î¶² ¿¡·¯»óÅÂÀÎÁö´Â Ãß°¡ÀûÀÎ Á¤º¸·Î Á¦°øµÇ´Â bitµéÀ» È®ÀÎÇØ¾ß ÇÑ´Ù.
  • Command register (1F7H, write)

  • Alternate status register (3F6H, read)

  • Device control register (3F6H, write)
    bit 7 6 5 4 3 2 1 0
    ÀÇ¹Ì N/A N/A N/A N/A 1 SRST !IEN 0
    SRST (Software reset) : ÀûÁ¤½Ã°£µ¿¾È ¼³Á¤ÇÏ°í ÀÖÀ¸¸é Àç¼³Á¤»óÅ·Πµ¹ÀÔÇϸç 0À¸·Î º¯°æÇÏ¸é ±âµ¿À» ÇÏ°Ô µÈ´Ù. !IEN (Interrupt enable) : 0À̸é interrupt¸¦ Çã¿ëÇÏ°Ô µÈ´Ù.

  • Drive address register (3F7H, read)
    bit 7 6 5 4 3 2 1 0
    ÀÇ¹Ì N/A !WTG !H3 !H2 !H1 !H0 !D1 !D0
    !WTG (Write gate) : ¼±ÅÃµÈ µå¶óÀ̺갡 ¾²±âµ¿ÀÛÁßÀ϶§´Â 0À¸·Î ¼³Á¤µÈ´Ù. !H3~0 (Invert Head number) : ÇöÀç ¼±ÅÃµÈ µå¶óÀ̺êÀÇ Head¹øÈ£°¡ ¹ÝÀüµÇ¾î ¼³Á¤µÈ´Ù. !D1 (Slave drive) : Slave drive°¡ ¼±ÅõǸé 0ÀÌ ¼³Á¤µÈ´Ù. !D0 (Master drive) : Master drive°¡ ¼±ÅõǸé 0ÀÌ ¼³Á¤µÈ´Ù.

Âü°íÀÚ·á

  • Samsung HDD datasheet (Spinpoint P80VEM Product Manual Rev01.pdf)
  • Hitachi HDD datasheet (5K250_DS.pdf, Desktop 250GB 7200 rpm Data Sheet.pdf, Desktop 250GB Specification.pdf, P7K500_DS.pdf, Travelstar 4200rpm Data Sheet.pdf, Travelstar 4200rpm Specification.pdf, ...)
  • Seagate HDD datasheet (N2ProductManual(2.5ÀÎÄ¡, 4200RPM).pdf, Seagate HDD Disk.xls. RoHS DoC Tonka v4.pdf, ...)
  • Western Digital HDD datasheet (WD KR model name1_Apr06.pdf)
  • SCSI & IDE interface second edition (Friedhelm Schmidt, ADDISON WESLEY)


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