 ZX.SPECTRUM (2:5020/689.100)  ZX.SPECTRUM 
 Msg  : 47 of 89
 From : Denis Sotchenko                     2:5020/1301.7    17  98 04:46
 To   : All                                                  18  98 10:15
 Subj : [0/6] IDE

@TEAM: PC SUX! 2
   頭 ᠭ ணࠬ஢ IDE ⮢.    
㬥 -  ⮫쪮 ணࠬ 䥩,  ⮣  祬
筮  ᠭ ࠩ஢.  H᪮쪮 室 砭:


 1) 㤠   IDE 䥩.

    - ਤ㬠 ଠ IBM ஫ -  PC.  
 (   BeOS)   稪    楤
⥭-.  ⮬ - 諮   ७ ஫ 
 設  ᠬ ,  ࠭ ᮢ⨬ 
ॣࠬ -     IDE   PC ணࠬ 룫
ᮢ襭 ,      ॣ.    諨
 ⠪ ஭,  ,  ⭮⥫쭮 ਨ
 ( SCSI   ஬ ᪮ ).  ६
IDE    ࠡ  ⠪ 뢠 LBA (Logical Block
Addressing) mode,  ⮬ ⮦  ᪨  .  H
IDE ⥬  뫠 ७ - ਬ,  ⠪ ,
 뢠 ਨ  ࠧ ࠬ஢ .

 2) H᪮쪮 ᫮  ਨ 

    ᪮ MFM  (  ᠬ  IDE, ਬ
WD98044)    뢠 ਨ,  
,  । ஫  $91 (Init Drive
Parameters).  IDE   ० 믮    楫
ᮢ⨬,     㦥  㦤, ⠪   㦥
 ᢮ ஫ .  ⢥,  
⮫쪮  祭 ᥠ ࠡ, 筥  ᫥饩 樠樨
.
    쭠  ᮢ६     ⭮襭
 ⮩,   頥  䨪樨.   ⮬ 
㡥, ਪ,     -夨᪮ ⥫ 16
.  쭮 ⢮ ᥪ஢  ࠧ ஦  
ࠧ筮  ࠧ砥  ᪮쪮 ࠧ - ਬ୮   CD-ROM.

 3)  ਢ񭭮  H  H  HH  CD-ROM 
稬 ATAPI ன⢠.   ⠬   ⮫쪮 ᪨
 䥩.  ᫨     ATAPI -  ⤥쭮.

    __
 __/ /   Powered                                 [pepsi inside]
 \_\/  by MOTOROLA                               [smoking suxx]

--- rdc@cch.pmc.ru http://rdc.cch.pmc.ru rdc@IRCnet
 * Origin:  -  (2:5020/1301.7)

     7. ᪨ 䥩

     7.1 騥 

     7.1.1 砭 ࠧ冷

      ⮢  묨 㪢. ᫨
 ࠧ鸞 । 筠 㪢 'n',   ࠧ
 (⥫쭠 ), . . nBIT=0 砥
H, nBIT=1 - . ᫨ ।    㪢 'n',
  ࠧ ⥫쭮 , . .  BIT=1 - H,
 BIT=0 - .


     7.1.2 ।

     H⥫  ⨬ 䥩ᮬ         
   ᫥ ᯮ . ᫨  -
⥫ 祭  ࠫ쭮,      ,  ஬  
Execute Diagnostics, ૭ ⮫쪮 ࠭  ⥫.
   Execute Diagnostics  ᪮  믮
⨪  ⥫ 1 ᮮ頥 ᢮ ﭨ ⥫ 0
१ ᨣ PDIAG-.

     H⥫ 롨 ⮬ DRV     /-
 (. 7.2.8),  ६窮  ४⥫.  DRV=0
- ࠭ ⥫ 0,  DRV=1 ࠭ ⥫ 1.

     ᫨ ⥫ ᮥ ࠫ쭮,    
⠭  ⥫ 0,  㣮    ⥫  1.  
祭 ⮫쪮  ⥫     ⠭
 ⥫ 0.

      ਭ ⮣ ⠭ ⢮ ⥫,  -
  ६窠  祭 ⥫ 0   -
⥫ 1  ⥫ 0  ⥫ 1.

      ⮬ ⠭ 롮 ᪮ ᥣ ⢫ -
⮬ DRV   ६窨  ४⥫  -
⥫.


     7.2 ᠭ ॣ஢ -뢮

         ⥫ ⢫ १  ॣ-
 -뢮, 롨ࠥ   ᨣ  (CS1FX-,  CS3FX-,
DA2, DA1, DA0, DIOR-  DIOW-), 㯠  .

      ஢  (Command Block Registers) ᯮ-
  ।   ⥫  ⥭ ﭨ.

      ஢ ࠢ (Control  Block  Registers)  -
  ࠢ ⥫ﬨ  ⥭ ⥪饣 -
ﭨ.

      ⠡ 7-1 ਢ ᯨ᮪  ॣ஢   .

                           祭: A - ᨣ ⠭
                                        N - ᨣ 
                                        x -   祭

           7-1:  ॣ஢ -뢮
Ŀ
                           H祭              
Ĵ
CS1CS3DA2DA1DA0   ⥭ (DIOR-)        (DIOW-)  
FX-FX-                                                 
Ĵ
                             ஢ ࠢ        
Ĵ
 N  N  x  x  x    쥬 .   H ᯮ   
 N  A  0  x  X    쥬 .   H ᯮ   
 N  A  1  0  x    쥬 .   H ᯮ   
 N  A  1  1  0  . ﭨ   ࠢ
 N  A  1  1  1   ⥫     H ᯮ   
Ĵ
                               ஢           
Ĵ
 A  N  0  0  0                             
 A  N  0  0  1   訡        .       
 A  N  0  1  0  稪 ஢     稪 ᥪ஢  
 A  N  0  1  1  H         H      
 A  N  1  0  0   (..)       (..)   
 A  N  1  0  1   (..)       (..)   
 A  N  1  1  0  ਢ/孮   ਢ/孮
 A  N  1  1  1  ﭨ                       
 A  A  x  x  x  Hࠢ    Hࠢ 


     7.2.1 ⥫  ﭨ

      ॣ ᮤন   ᠬ ଠ    
ﭨ   ॣ஢ . ⢥ ⫨稥  -  
⥭ ⮣ ॣ  뢠 ᨣ ॡ  -
.

      7      6      5      4      3      2      1      0
   Ŀ
    BSY   DRDY  DWF   DSC   DRQ   CORR  IDX   ERR  
   

     . 7.2.13  ଠ樨  祭 ⮢  ⮬ ॣ-
.

     7.2.2  

      ॣ ᮤন  ,  뫠  ᪮.
믮  稭 ࠧ ᫥   ⮣  ॣ-
. 믮塞 ,    室  ࠬ  
 樨 ਢ  ⠡ 9-1.


     7.2.3   ( )

      ॣ ᮤন   砫    -
   ᪮ 樨.  ᫥  믮  
 ॣ ,  ᥣ  ࠦ  ⥪騩  
樫. 訥 ࠧ  樫   㦥
  ॣ.

HH:   ⮣ ⠭ ᯮ짮 ⮫쪮 
            ⮣ ॣ, ࠭稢  樫-
            ⠬, . . 1024 樫ࠬ.


     7.2.4   ( )

      ॣ ᮤন 訥 8  砫쭮   -
   ᪮ 樨.  ᫥  믮  
 ॣ ,  ᥣ  ࠦ  ⥪騩  
樫.


     7.2.5  

      16- ࠧ來  ॣ  ᯮ    ।
  ஬ ⥫  .  ॣ  ⠪  -
  ࠧ饭     ଠ஢      
Format.  ।   ᯮ짮  ०  ண-
ࠬ   .


     7.2.6  ࠢ ன⢮

      ⮬ ॣ ᯮ ᫥騥 :

         7     6     5     4     3     2      1      0
      Ŀ
        x    x    x    x    1   SRST  nIEN   0  
      

- SRST -  ணࠬ  ⥫.  ⠭ ⮣
   ⥫ ந . ᫨  ᪮ ᮥ-
   ࠫ쭮,   ᪮  ⢫  
  ⮬  ६. 祬  ⥫ 1   ॡ
  믮 楤 DASPhandshake.

- nIEN -  ࠧ襭 뢠  ⥫. ᫨ nIEN=0 
  ᪮ ࠭,   設   뤠  ᨣ  INTRQ
  १ 뢮  ६ ﭨﬨ. ᫨ nIEN=1    ⥫
   ࠭, ᨣ INTRQ    ﭨ ᮪  -
  .


     7.2.7   ⥫

      ॣ ᮤন  롮 ⥫     롮
 ࠭ ⥫.   ⮬ ॣ ᫥騥:

      7     6      5      4      3      2      1      0
   Ŀ
    HiZ  nWTG  nHS3  nHS2  nHS1  nHS0  nDS1  nDS0 
   

- HiZ ᥣ    ﭨ ᮪ .

- nWTG -  . ᫨    ,  nWTG=0.

- nHS3...nHS0 - 筮     ࠭  
  (孮). nHS3 - 訩 . Hਬ, ᫨ nHS3...nHS0
  = 1100b,  ᮮ⢥⢥ ࠭  3.

- nDS1 -  롮 ⥫  ᪮ 1.    -
  ⥫ 1 ࠭, nDS1=0.

- nDS0 -  롮 ⥫  ᪮ 0.    -
  ⥫ 0 ࠭, nDS0=0.

HH:  樨 ⮢ ⮣ ॣ  ᫥  
          ஦, . . - ᯮ짮 ஢ 
            ࠦ ⥪饣 ﭨ ⥫.


     7.2.8  H⥫/

      ॣ ᮤন    ⥫. ন-
 ⮣ ॣ   ⥫     
믮  Initialize Drive Parameters.


          7     6     5     4     3     2     1     0
       Ŀ
         1    0    1   DRV  HS3  HS2  HS1  HS0 
       

- DRV -  롮 ⥫. ᫨ DRV=0,  ࠭ ⥫
  0, ᫨ DRV=1,  ࠭ ⥫ 1.

- HS3...HS0 ᮤঠ     (稭  -
  ),  㤥 ࠭. Hਬ,  ᫨  HS3...HS0=0011b,
   㤥 ࠭  3. HS3 - 訩 . ᫥ -
   ,  ॣ     ᥣ  ᮤন
  ⥪騩  ࠭ . 


     7.2.9  訡

      ॣ ᮤন ﭨ ⥫ ᫥  믮-
 ᫥   ᪨ .

     ᫥ 襭        ᪫祭  Execute
Drive Diagnostic  ॣ ᮤন  訡, ᫨  ERR
  ﭨ ⠭ (ERR=1).

     ᫥ 祭 ⠭,      襭  
Execute Drive Diagnostic  ॣ ᮤন  ᪨
 (.  9-2).


       7     6     5     4      3     2       1      0
    Ŀ
     BBK  UNC   0   IDNF   0   ABRT  TK0NF  AMNF 
    


- BBK (祭 宩 ) -  㪠뢠,    믮-
   樨  祭 ᥪ  ࠢ쭮 ⪮  
    ᥪ.

- UNC (Hࠢ 訡  ) -  㪠뢠,   -
   樨 뫠 祭 ࠢ 訡   .

- IDNF (  ) -  㪠뢠,     㪠-
   ᥪ  .

- ABRT (ࢠ ) -  㪠뢠,  믮 -
    뫮 ࢠ - 訡 ﭨ ᪮
  (H ⮢,  ,  ...)   ⨬  
  .

- TK0NF (஦ 0  ) -  㪠뢠,    믮-
    Recalibrate. ஦ 0  .

- AMNF (H   થ)  -    㪠뢠  
  થ   ᫥ 宦 ࠢ쭮   ᥪ-
  .

- Hᯮ㥬  .


     7.2.10  ⥩

      ॣ ।祭  ᯥ樠   -
/몫祭 ᯥ᪨ ⥩ ⥫,  ਬ
 Set Features ࠧ蠥  頥 ஢.

       ⥫  ॣ     ॠ-
. 

      ⠭ ⮣ ⠭   ᯮ짮
 ॣ  㪠  ४㥬 樫 -
 ।樨  .


     7.2.11  稪 ஢

      ॣ ᮤন ᫮ । ᥪ஢ 
  ⥭/. 祭  ᮮ⢥ 256
ᥪࠬ.

     ᫨ ᫥ 믮   ॣ ᮤন 0, 
 뫠 믮  .   ॣ ᮤন
᫮ । ᥪ஢.

      ॣ     ᯮ짮 
㣨 楫, ਬ   Initialize Drive  Parameters,
Format Track  Write Same.


     7.2.12  H 

      ॣ ᮤন 砫   ᥪ    
樨  묨. H ᥪ    1  ᨬ-
 ᫠ ᥪ஢  ஦.

      । ᮤন ॣ ᫥ 襭  -
 . ᠭ ᮮ⢥饩 .

     筮  ᯥ譮 襭    ॣ  ᮤন
 ᫥ ᥪ,  ஬ ந室  饭  
 ᫠ ᥪ஢  ஦. ᫨    蠥  
訡, 筮 ॣ ᮤন  ᥪ,  ம  -
諠 訡  㯯 । ᥪ஢.


     7.2.13  ﭨ

      ॣ  ᮤন  ﭨ  ⥫.  ন
⮣ ॣ   ᫥  襭    .
 BSY 饭, 㣨  ⮣ ॣ   -
  祭 400 . ᫨ BSY=1,  㣨     ⮬
ॣ  㯭. ᫨  ⠥  ॣ    -
饭 뢠, ॡ 뢠 뢠.

HH: ᫨ ⥫ 1 ,  ⥫ 0 -
            ﭨ ⥫  1  (  ⮣,
           ᪮  ⮢).


         7     6      5     4     3      2     1     0
      Ŀ
       BSY  DRDY  DWF  DSC  DRQ  CORR  IDX  ERR 
      


- BSY ()  ⠭  ᪮ 頥  
   ஢ .       -
  ஢ , ᫨ BSY=1.  BSY=1    ⥭  
  ॣ     ᮤন  -
   ﭨ.   ⠭ ⥫,  ᫨  
      ᫥ :

  )  祭 400  ᫥  ᨣ RESET-  ᫥ -
     ⠭ SRST   ࠢ ன⢮. ᫥ -
      ᨣ  ४, ⮡  BSY ⠭-
        祬  30 ᥪ㭤  ⥫  0    
      祬  31 ᥪ㭤  ⥫ 1.

  )  祭 400  ᫥ ᪠    Read,  Read  Long,
     Read Buffer,  Seek,    Recalibrate,    Initialize    Drive
     Parameters, Read Verify, Identify Drive,  Execute Drive
     Diagnostic.

  )  祭 5  ᫥ । 512     믮-
       Write, Format Track,   Write  Buffer,  
     512    ᮮ⢥饣 ᫠ ⮢   -
     ࠢ 訡 (ECC-)  믮    Write
     Long.

- DRDY (⮢ H⥫) -   㪠뢠,    ᪮
  ⮢ ਭ . ᫨ ।  訫 
  訡,  ᮤন ⮣   ,   -
  ⠭  ﭨ, ᫥ 祣   ᭮ 뢠
  ⥪ ⮢ ⥫.        饭
  ᫥ 祭 ⠭  ⠢ 饭,   -
  ⥫  㤥 ⮢ ਭ .

- DWF (   ) -  㪠뢠 ⥪饥 ﭨ
   . ᫨ ।  訫   訡-
  ,  ᮤন ⮣   ,   ⠭
   ﭨ, ᫥ 祣   ᭮ 뢠 ⥪-
  饥 ﭨ  .

- DSC (⠭ ᪮ 襭) -  㪠뢠,   -
   ᪮ ⠭  ஦.  .  ᫨
  ।  訫  訡,  ᮤন -
     ,    ⠭    ﭨ,
  ᫥ 祣   ᭮ 뢠 ⥪饥 ﭨ -
  襭 ⠭ .

- DRQ ( ) 㪠뢠,  ᪮ ⮢   ।
  ᫮       ⥫.

- CORR (ࠢ ) -  㪠뢠,      ⥭
   ந諠 ४   뫨 ࠢ.   -
  ⨥  蠥 । .

- IDX () -  ⠭    ᪠.

- ERR (訡) -  㪠뢠,   祭 믮 ।-
  饩  ந諠 訡. ⥫쭠 ଠ -
  ⥫쭮 稭 訡 ᮤন   訡.


     8. ॡ  ணࠬ஢


     8.1 ⢫ 

      ਭ  祭 400   ᫥    ᨣ
RESET-   祭 400  ᫥ ⠭ SRST   -
ࠢ ன⢠ (Device Control Register).

       ⥫ ᨣ RESET-, ⥫ 1 
㪠  ᢮ ⢨, ⠭ DASP-  , 祬
१ 400   ࠭   ᥭ 30 ᥪ㭤   ਭ
⥫ 1 ࢮ . . ⠪ 6.3.4  6.3.13.

      ⥫ 襭 SRST,   ⠭ BSY=1.

     . ⠪ 7.2.6.

     ᫥ ਭ    ⠭ BSY:

)  ᪮ 믮  室  樠-
   ;
)  ᪮   ।⥫쭮 ணࠬ㥬 -
   ࠬ;
)  ᪮ ⠭  ࠬ  㬮砭;
)  ᪮ 㦠   ஢  祭 
   㬮砭;
)  ⭮  ⥫ 0   DASP-, -
    㤥 ⠭ ᪮ 1;
)  ணࠬ  ⥫ 1 ⠭ DASP-;
) ⥫ 0  ⠭ PDIAG-, ᫨ ⥫ 1  -
    DASP;
)  ணࠬ  ᪮ 1 頥 BSY;
)  ணࠬ  ⥫ 1 ⠭ PDIAG-;
) ᪮ 0 頥 BSY.


     H 뢠  ࠡ뢠   襭
樠樨. 

        祭  㬮砭   ஢  ᫥
ᯥ譮 襭 ᠬ஢:

    訡            = 01h          (..)    = 00h
    稪 ᥪ஢  = 01h          (..)    = 00h
    H ᥪ     = 01h         H⥫/ = 00h

      訡  ᮤঠ ᪨    (.
 9-2), ᫨  ஢ 㦥 訡.

     ᫥     뤠    Initialize
Drive Parameters, ⮡ ࠭஢,  ᪮ 樠-
஢  ॡ.


       ⨯   ATA:

-   H H: ⥫ 믮  ⨪
  ஭ 奬, 稢 , ஢ த-
  ⢨  㣨 堭᪨ ࠬ  ⠭  -
    㬮砭.

- H : ᪮ 믮 ⨪  ஭
  奬  ⠭ 祭  㬮砭.

- H : ᪮ 뢠 奬 䥩   -
  ⠭ 祭  㬮砭.


     8.2  䨣樨

     ᫮ 樫஢,   ᥪ஢ ᪮,  ।
   ⫨  䠪᪮ 䨧᪮ 䨣樨.
뤠 䨣  ७  ,  
 ,  訥 ࠧ.


     8.3  ⠭

     ⥫  㬥襭 ࣮ॡ -
   ० ࠡ ⥫ ⠪, ⮡  㬥
魮, ॡ㥬  ࠡ.

                  8-1:   ⠭
      Ŀ
            SRSTBSYDRDY 䥩        
      Ĵ
       ⠭     1  x   x      0          0     
                                                  
           x  0   1      1          0     
                                                  
       ᨢ   x  0   1      1          1     
                                                  
       ⨢    x  x   x      1          1     
      Ĵ
                 1 = ⨢     0 = ᨢ          
      


       ॡ塞  魮  ᮮ⢥  ०
⠭. ᫨ ⥫ 室  ० ⠭,   -
 ணࠬ    ⨢樨 (.  9.18).  ६
⨢樨  室  30 ᥪ㭤  .

      ୮ ० 䥩 ⥫ ᯮᮡ  ਭ
,  ᪮  ࠧ  㯥,  祭  -
  ன 30 ᥪ㭤  .

      ᨢ ० ᪮ ᯮᮡ ⢥ ࠧ  ᫥
   ॡ  ६  襭  -
 , . .  ॡ ⨢஢ -
  奬.

      ⨢ ० ⥫ ࠧ ᯮᮡ 믮  -
 ॡ㥬        쭮  
६.

     ⮢   ஬ - ०  -
⠭. H⥫  뤠 ⮢    -
 ᪥.

     . ⥫   ० ⠭.


     8.4  訡

      訡,   ⠭ ।  -
 ਢ  ⠡ 8-2. H ॡ, ⮡   -
⠭   訡. .  7.2.9    7.2.13  ।
ଠ  訡  ⮢  ﭨ.

                   8-2:  訡 
 Ŀ
                              訡 . ﭨ
                           Ĵ
                           B U I A T A D D D C E 
         H           B N D B K M R W S O R 
                           K C N R 0 N D F C R R 
                               F T N F Y     R   
                                   F             
 Ĵ
  Check Power Mode               +     + + +   + 
  Execute Drive Diags         See 9.2              + 
  Format Track                 + +     + + +   + 
  Identify Drive                 +     + + +   + 
  Idle                           +     + + +   + 
  Idle Immediate                 +     + + +   + 
  Initialize Drive Parms               + + +     
  Recalibrate                    + +   + + +   + 
  Read Buffer                    +     + + +   + 
  Read DMA                 + + + +   + + + + + + 
  Read Long                + + + +   + + + + + + 
  Read Multiple            + + + +   + + + + + + 
  Read Sector(s)           + + + +   + + + + + + 
  Read Verify Sector(s)    + + + +   + + + + + + 
  Seek                         + +     + + +   + 
  Set Features                   +     + + +   + 
  Set Multiple Mode              +     + + +   + 
  Sleep                          +     + + +   + 
  Standby                        +     + + +   + 
  Standby Immediate              +     + + +   + 
  Write Buffer                   +     + + +   + 
  Write DMA                +   + +     + + +   + 
  Write Long               +   + +     + + +   + 
  Write Multiple           +   + +     + + +   + 
  Write Same               +   + +     + + +   + 
  Write Sector(s)          +   + +     + + +   + 
  Write Verify             + + + +     + + +   + 
 Ĵ
  Hࠢ         +     + + +   + 
 Ĵ
  + =  ⠭                           
 


     9. ᠭ 

      ।  ⥫ ⥬ 㧪  室-
 祭  ॡ㥬 ॣ  , ᫥  祣  
  㦠  室 .

      ਭ 䥩ᮬ ࠧ묨 ᯮᮡ. 
  (. ⠡ 9-1)   ᨬ  ᯮᮡ 
ਭ, 室  ⮣,  ᫥ ਭ  BSY=0:

- ᫥ 祭   1 ᪮ ⠭ BSY 
  祭 400 .

- ᫥ 祭   2 ᪮ ⠭ BSY 
  祭 400 , ⠢   ᥪ஢    樨
  , ⠭ DRQ  祭 700   頥  BSY  
  祭 400  ᫥ ⠭ DRQ.

- ᫥ 祭   3 ᪮ ⠭ BSY 
  祭 400 , ⠢   ᥪ஢    樨
  , ⠭ DRQ  祭 20 ,   頥  BSY  
  祭 400  ᫥ ⠭ DRQ.

HH:    2   3 DRQ     -
           ⠪ ,  ਮ,  ஬ BSY=1  
           ᫨誮 ⮪   㤥 ᯮ.

     ᪮  믮  易⥫ ,  -
祭 "M",   믮 ⥫ , -
祭 "O"  ⠡ 9-1. "V" 㪠뢠  ,    
 ࠧ   ⥫ ࠧ  ⮢-
.

              9-1:    ࠬ
Ŀ
                                           ࠬ   
            H             Ĵ
                                            FRSCSNCYDH
Ĵ
  1   Check Power Mode            O 98h E5h  y     D 
  1   Execute Drive Diagnostic    M   90h          D*
  2   Format Track                M   50h  * y   y y 
  1   Identify Drive              O   ECh          D 
  1   Idle                        O 97h E3h  y     D 
  1   Idle Immediate              O 95h E1h        D 
  1   Initialize Drive Parameters M   91h    y     y 
  1   Recalibrate                 M   1xh          D 
  1   Read Buffer                 O   E4h          D 
  1   Read DMA (w/retry)          O   C8h    y y y y 
  1   Read DMA (w/o retry)        O   C9h    y y y y 
  1   Read Multiple               O   C4h    y y y y 
  1   Read Sector(s) (w/retry)    M   20     y y y y 
  1   Read Sector(s) (w/o retry)  M   21     y y y y 
  1   Read Long (w/retry)         M   22     y y y y 
        . 9.13                                     
  1   Read Long (w/o retry)       M   23     y y y y 
        . 9.13                                     
  1   Read Verify Sector(s)       M   40     y y y y 
        (w/retry)                                    
  1   Read Verify Sector(s)       M   41     y y y y 
        (w/o retry)                                  
  1   Seek                        M   7xh      y y y 
  1   Set Features                O   EFh  y       D 
  1   Set Multiple Mode           O   C6h    y     D 
  1   Set Sleep Mode              O 99h E6h        D 
  1   Standby                     O 96h E2h  y     D 
  1   Standby Immediate           O 94h E0h        D 
  2   Write Buffer                O   E8h          D 
  3   Write DMA (w/retry)         O   CAh    y y y y 
  3   Write DMA (w/o retry)       O   CBh    y y y y 
  3   Write Multiple              O   C5h  * y y y y 
  3   Write Same                  O   E9h  y y y y y 
  2   Write Sector(s) (w/retry)   M   30   * y y y y 
  2   Write Sector(s) (w/o retry) M   31   * y y y y 
  2   Write Sector(s) (w/retry)   M   32   * y y y y 
  2   Write Sector(s) (w/o retry) M   33   * y y y y 
  3   Write Verify                O   3Ch  * y y y y 
      Vendor Unique               V   9Ah            
      Vendor Unique               V  C0-C3h          
      Vendor Unique               V   8xh            
      Vendor Unique               V F5h-FFh          
      EATA Standard (CAM/89-004)  O F0h-F4h          
      १ࢨ஢                 ...            
Ĵ
 CY =                                         
 DH =  H⥫/                             
 SC =  稪 ஢                              
 SN =  H                                  
 FR =  ⥩ (ᯮ짮 ᬮ   ᠭ 
      )                                                
                                                             
 M = 易⥫쭠                                     
 O = ⥫쭠                                   
 V =  -⮢⥫                              
 y - ॣ ᮤন ⨬ ࠬ  ⮩  . 
       H⥫/ "y" 砥,    - 
       ࠬ:    ⥫,    
     .                                                
 D - ⮫쪮 ࠬ H H⥫ (Drive)  - 
     , a H  -                           
 D* -  ⥫ 0,  믮         
 * - 祭  ᮢ⨬ (. 7.2.10)                 



     9.1 Check Power Mode
     /஢  ⠭/

       ஢ ० ⠭.

     ᫨ ᪮ 室  ୮ ०, 室  -
  夨 㤠, ⥫  ⠭ BSY, ⠭-
  稪 ஢  00h,  BSY  ᣥ-
 뢠.

     ᫨ ᪮ 室  ᨢ ०,    -
⠭ BSY,    稪 ஢  FFh,  -
 BSY,  ᣥ஢ 뢠.


     9.2 Execute Drive Diagnostic
     /믮 ⨪ ᪮/

      ⮩   믮  ७  -
᪨  ⥫. . ⠪ 6.3.4  6.3.13.  DRV  -
. ᫨  ⥬  ᪮      -
 ⨪.


     ᫨ ᪮ 1 :

- ᪮ 0   5 ᥪ㭤 砭  ⨪  ᪮
  1, ⮡ ⠭ PDIAG-.

- ᫨ ᪮ 1  ⠢ PDIAG-, ᨣ    ⪠,
  ᪮ 0  ᪨ ਡ 80h  ᮡ⢥ 
  ᪮ ﭨ.

-  ᪮  믮 ⨪.

- ᫨ ⪠ ᪮ 1 㦥,    ⠥  ﭨ
  ᪮ 0, ﭨ ᪮ 1  祭  ⠭
   DRV  ⥭ ﭨ.


     ᫨ ᪮ 1 :

- ᪮ 0 뢠 ⮫쪮 ᮡ⢥ १ ஢-
  .

- ᪮ 0 頥 BSY   뢠.

     ᪨ , ᠭ    訡  -  㭨-
 8   (. ⠡ 9-2),      
䫠, ।  7.2.9.

      9-2 ᮤন ᪨     ᮮ⢥-
騥 ᭥. ᫨ ⨪ ⥫  1    -
ࠢ,  ᪮ 0  ᪨ ᫮  ᮡ⢥-
 ﭨ  80h ( .OR. 80h) । 㧪    
訡. ᫨ ⨪ ᪮ 1 室 ᯥ譮  -
⥫ 1 ,  ⥫ 0   ᢮  -
᪨    訡  .

                9-2: ᪨ 
         Ŀ
              訡                           
         Ĵ
           01h   訡                 
           02h   訡 ଠ ⥫        
           03h   訡  ᥪ            
           04h   訡 横᪮ ECC      
           05h   訡 ஫ ய  
           8xh   H⥫ 1 ࠢ          
         


     9.3 Format Track
     /ଠ஢ ஦/

       Format Track -      ⭮
-ந⥫.   ந 䨧᪮ -
ଠ஢ ஦, 樠 ᮤন    
 祭   祣  .

      稪 ஢  ᮤঠ ᫮  ᥪ஢
 ஦.

      ஦   ।      
(   ),  ᫮ ᥪ஢ -    -
稪 ஢. ᫥ ਭ , ⥫ ⠭
 DRQ  ,     ᥪ஢.    
ᥪ஢ , ᪮ 頥  DRQ, ⠭  BSY
 稭 믮 .

     ঠ  ᥪ஢   뢠  -
⥫   ஢    ஢  ᫥騬
ࠧ:

  DD15 ... DD00             DD15 ... DD00
Ŀ        Ŀ
 ਯ-........᫥.ਯ- ⠢訩  
ᥪ      ........ᥪ        ﬨ 
        

      ᥪ ⠢  16- ࠧ來  ᫮  
뢭 ᫥⥫쭮 ᫮, 稭饩  砫 ᥪ-
.  ᫮, 騥   ᥪ ᫥ ᫮, ।-
⠢饣 ᫥ ᥪ  ﬨ.    DD15...08
ᮤঠ  ᥪ. ᫨ ᫥⥫쭮 ᥪ஢  -
, ᫮    ⮩   ᠬ  ᫥⥫-
,  ᥪ   ஦.  DD07...00 ᮤ-
 ਯ୮ 祭, । ᫥騬 ࠧ:

00h - ᯥ譮 ଠ஢ ᥪ
20h - ୠ⨢ ᯮ  ⮣ ᥪ  -
      
40h - H砥 ୠ⨢ ᯮ ⮣ ᥪ
80h -  ᮤন 䥪

HH: H 짮⥫  ᪮  ATA  ,  
          ⠡ ࠧ 樮 ⥬ 㤥 㭨⮦-
            Format.  ,  ⮡  ᪮,
            믮 䨧᪮ ଠ஢ ஦-
          , ᠫ 蠡     㫥    ᥪ,
           뫨 ।  Format Track.

HH: , ⮡ 㬥⠫쭮  ७祭
            뢠 ७ 訡.


     9.4 Identify Drive
     /஢ ⥫/

      Identify Drive       -
ଠ  ࠬ ⥫. ᫥ ਥ ,  ᪮-
 ⠭ BSY, 뢠 ଠ  ᢮ ࠬ
  ᥪ஢, ⠭ DRQ,     뢠.
᫥ ⮣  ⠥ ଠ   ᥪ஢.  -
ࠬ஢   ᥪ  ᯮ  祭,  -
।  ⠡ 9-3.  १ࢨ஢    ᫮
   ﬨ.

      9-3: 䨪樮 ଠ ⥫

Ŀ
                  H   H    H                    
Ĵ
    0    ᫮ 䨣樨 (  祭):       
          15  0=१ࢨ஢   ⥫ 
          14  1=ଠ ᪮ 室  ॡ㥬  - 
                                                       
          13  1=६ ᬥ饭 ஦ 㯭         
          12  1=ࠬ ᬥ饭 ᨭ஭樨      
                㯭                                    
          11  1=᪮ 饭  ।  0.5%     
          10  1=᪮   ᪮  10 /   
           9  1=᪮   ᪮  5  10 / 
           8  1=᪮   ᪮  5 /    
           7  0=१஢  ன    ᬥ묨 
                ਤ                                 
           6  1=䨪஢ ⥫                    
           5  1=ࠢ  ࠬࠬ  ⥫  ਢ 
               ᪠ ॠ                            
           4  1=६ 室   ஦  ஦ 
                 15                                 
           3  1=  (MFM)                       
           2  1= ᥪਧ                         
           1  1=⪠ ᥪਧ                        
           0  0=१ࢨ஢                             
    1   ⢮ 䨪஢ 樫஢                  
    2   १ࢨ஢                                     
    3   ⢮  (孮⥩)                   
    4   ⢮ ଠ   ஦              
    5   ⢮ ଠ   ᥪ               
    6   ⢮ ᥪ஢  ஦                      
  7-9   ᯮ ମ-⮢⥫                   
 10-19  ਩  (20 ASCII ᨬ, 0000h=⭮)
   20                                              
   21      512- ᥪ (0000h = - 
        ⭮)                                             
   22   ⢮ ECC-, ।   ⥭
          (Read/Write Long) (0000h=⭮)     
        /ECC -   ࠢ 訡/                   
 23-26  யணࠬ                            
        (8 ASCII ᨢ, 0000h= 㪠)                 
 27-46  H  (40 ASCII ᨢ, 0000h=⭮)   
   47   0000h = ६ ⥭       
            x = ⢮ ᥪ஢, ஥   - 
                ।  뢠   ६ 
                ⥭                               
   48   0000h = /뢮  ᫮           
        0001h =  /뢮  ᫮            
   49   ⥫                           
        15-9  0=१஢                             
           8  1=প  (DMA)                         
         7-0  ᯮ ମ-⮢⥫             
   50   १ࢨ஢                                     
   51   ६ 横 ணࠬ                       
   52   ६ 横    ᯮ짮  (DMA)   
 53-127 १ࢨ஢                                     
128-159 ᯮ ମ-⮢⥫                   
160-255 १ࢨ஢                                     


     H ,ᠭ  9.4.1 ..... 9.4.5    Initialize
Drive Parameters  .


     9.4.1 ᫮ 䨪஢ 樫஢

     ᫮ 樫஢    㬮砭 ० ࠭樨.


     9.4.2 ᫮ 

     ᫮     㬮砭 ० ࠭樨.


     9.4.3 ᫮ ଠ   ஦

     ᫮ ଠ   ࠭᫨㥬 ஦   -
  㬮砭 ० ࠭樨.


     9.4.4 ᫮ ଠ   ᥪ

     ᫮ ଠ   ᥪ     㬮砭
० ࠭樨.


     9.4.5 ᫮ ᥪ஢  ஦

     ᫮ ᥪ஢  ஦     㬮砭  ०
࠭樨.


     9.4.6 ਩ 

     ঠ ⮣  ࠢ  ࠢ   -
  20 ᨬ ஡ (20h).


     9.4.7  

     ঠ  । ମ-⮢⥫.

     0000h =  ।.
     0001h = 筠 ਧ,  ன  ⥫  
 ६ ந । ଠ樨    -
⥫  ⭮.
     0002h =  ਧ,  ன ⥫  
६ ந । ଠ樨      -
⥫  ⭮.
     0003h =  ਧ,  ன ⥫  
ந ⥭  ஢.
     0004-FFFFh = १ࢨ஢

       筮  ᯮ 樮 ⥬, -
    ᪨ ணࠬ,  믮-
 ணࠬ 樠樨, ਬ  ࠧ筮  ।
ॠ権 ⥭     ⥫쭮    0001h  
ࠢ  0002h  0003h.


     9.4.8 யணࠬ 

     ঠ ⮣  ஢      -
  8 ᨬ ஡ (20h).


     9.4.9 H 

     ঠ ⮣  ஢     
 40 ᨬ ஡ (20h).


     9.4.10 ६ 横 ணࠬ 

     ஭ ணࠬ     ATA  ன-
⢠ ⭮  ⥣,   㭨  ࠬ-
᪨ 孨᪨  ᨭ஭樨. ⮡ । -
⢥騩  ᨭ஭樨  ன⢠,  ࠢ  ६
, ।  㭪 11-1  ᮤঠ  ⮣  .
饭 祭  ᮮ⢥⢮     ⥣-
਩, ।  㭪 11-1. ᫨ ⮣  ந室, 
 ᯮ짮 ० 0,     㬮砭  ᨭ-
஭.


     9.4.11 ६ 横  

     ஭ । אַ 㯠    -
 ATA ன⢠ ⭮  ⥣,      㭨-
 ࠬ᪨ 孨᪨  ᨭ஭樨. ⮡
। ᮮ⢥騩     ᨭ஭樨   ன⢠,
ࠢ ६ , ।  㭪 11-3  ᮤঠ-
 ⮣ . 饭 祭  ᮮ⢥⢮ -
  ⥣਩, ।  㭪 11-3. ᫨  ⮣  
ந室,   ᯮ짮 ० 0,     
㬮砭 ᨭ஭.


     9.5 Idle
     /室  ᨢ ०/

      ⮩  ⥫ ⠭ BSY, 室  
ᨢ ०, 頥 BSY   뢠.  ࢠ-
 ,  ᫨ ᪮     ३
 ᢭ ०.

     ᫨  㦥 頥, 楤 ⪨ ᪠   -
.

     ᫨  稪 ஢ ᮤন  㫥  -
,  ⮬᪨ ᪠ 稪 ६ 祭 -
  ࣮ॡ. ᫨  稪  -
஢ ᮤন 㫥 祭,  稪  ᪠.


     9.6 Idle Immediate
     /H।⢥ 室  ᨢ ०/

      ⮩  ⥫ ⠭ BSY, 室  
ᨢ ०, 頥 BSY   뢠.  ࢠ-
 ,  ᫨ ᪮     ३
 ᢭ ०.


     9.7 Initialize Drive Parameters
     /樠஢ ࠬ ⥫/

          ࠢ 묨  -
ࠬࠬ ⥫.   ࠬ஢ ⠭⨧,  
 ६  㣨 ६     ᨬ  
⭮ -⮢⥫.

           ᫮ ᥪ஢ 
஦  ⢮   1, 室饥    -
. ᫥ 祭  ᪮ ⠭ BSY, -
࠭ ࠬ, 頥 BSY   뢠.

       ᯮ ⮫쪮  ॣ -  -
稪 ஢,    ᫮ ᥪ஢  ஦, 
 H⥫/,  । ⢮ -
  1.  DRV 㪠뢠,   ⥫  ⠭-
  祭.

     ⢮ ᥪ஢    ஢    -
 ⮩    ⨬ 祭 訡   -
 ᣥ஢,  - 㣠   ந-
 饭 .


     9.8 Recalibrate
     /४஢/

       ६頥  ⥭/   -
 ᪠  樫 0. ᫥ 祭   ᪮  -
 BSY  ந ⠭      㫥  -
. ⥬ ⥫  砭 ⠭ ,  -
頥 BSY  ந 뢠.

     ᫨ ᪮   ⠭    㫥  -
,  訡  "஦  H  H"  (Track  Not
Found).


     9.9 Read Buffer
     /⥭ /

      ⥭       ⥪饥
ᮤন  ᥪ஢ ᪮.    뤠,
᪮ ⠭ BSY, ⠢   ᥪ஢  
樨 ⥭, ⠭ DRQ, 頥 BSY,    
뢠. ⥬  ⠥  512 ⮢   .

      Write Buffer  Read Buffer    㯯-
  ⠪ ᫥⥫쭮, ⮡        
⥬- 512 ⠬ . 


                                        9.10 Read DMA
     /⥭  /

       믮 筮    Read  Sectors
஬ ᫥饣:

-  樠 ᯮ㥬 -  뤠 ;

- ।  ࠢ DMARQ  믮  ᯮ㥬
  -;

- ⥫  ⮫쪮  뢠  , -
   㪠,  ।  訫  ⥫ -
  㯥. 

      訡, ந襤  ।     -
  砭 ।   ⮬ ᥪ,  ஬ -
諠 訡.  ⮬ ᥪ  訡  ।. H-
⥫  뢠, ᨣ饥  砭  -
 . 訡 ॣ ⠪-,      Read
Sectors.


     9.11 Read Long
     / ⥭/

      Read  Long  믮  筮    Read
Sectors  ᪫祭 ⮣,    頥  
    ࠢ 訡  (ECC-),  ᮤঠ騥  
  㪠 ᥪ.    ᯮ    Read
Long, ᪮   ஢    ECC-    ।
訡  .   ন ⥭ ⮫쪮 -
 ᥪ.

     । ECC-⮢ ⢫  8- ⭮  ਭ
設 .


     9.12 Read Multiple Command
     /⥭  ᥪ஢/

      Read Multiple 믮 筮   Read
Sectors. 뢠     ᥪ,  ⮫쪮
 । ,  ᮤন ᫮ ᥪ஢, ।-
  Set Multiple.

     믮  筮 樨 Read Sectors   -
祭 ⮣,  ᥪ, ।  Set Multiple
६  뢠.  DRQ ⠭  ⮫쪮  
砫  ,     ᥪ.

       뫠  뢠 ᥪ஢ ணࠬ-
  Set Multiple Mode,    믮-
   Read Multiple.

     ᫥ 뤠  Read Multiple  稪 -
஢ ᮤন ᫮ 襭 ᥪ஢ (  ᫮    
稪 ). 

     ᫨ ᫮ 襭 ᥪ஢   楫  ᫮
ᥪ஢  ,  ६頥 ᨬ쭮 ⢮  ᥪ-
஢ 筮 뫪,  ⮪ - 筮 筮 -
.

     ᫨  Read  Multiple  맢  ।    Set
Multiple Mode  ᫨  Read Multiple 饭,  -
室 訡 "४饭 " (Aborted Command).

     ᫨ ந諠 訡  筮  筮 筮 -
뫪,  DRQ   ⠭,   ।    
 த,  । ࠢ .

     ঠ  ஢   ᫥  ।  
  訡 ।.       ।
묨 ᠬ, ⮡  ࠢ  ଠ  
訡.

᫥騥  ᫥   訡 । ⮫쪮  ⮬
砥, ᫨ 訡 뫠 ᪮४஢.  ⠫ 訡
뢠 ४饭 । ᫥   訡.
뢠   DRQ ⠭  砫
 .

     訡 ⠪-,    Read Sectors.


     9.13 Read Sector(s)
     /⥭ ᥪ()/

       ⠥  1  256 ᥪ஢. ⢮ ᥪ-
஢ ।   稪  ஢.  H  ᮮ⢥-
 256 ᥪࠬ. । 稭  ᥪ, ᠭ
  H . . 10.1   ।  ⮪
 ᨣ DRQ, IRQ  BSY  । .

     ᫨   室  㦭 ஦,    -
 㤠. ᫥ ⠭  ॡ㥬 ஦  -
⥫  ࠧ  䨪 (ID).

     ᫨ ७ 饭    묨 -
ᠬ ॡ㥬 䨪    ,    뤠  訡
"䨪  " (ID Not Found).

     ᫨ ७ ࠧ襭,  ᫮ ⮪ ᪠ -
䨪  ॣ樨 訡   ⭮  -
⥫   ⥫.

     ᫥ ⥭ ࠢ쭮  䨪    
થ. ᫨ થ  ,  뤠  訡  "H  
 થ" (Address Mark Not Found).

     ᫥ 宦 ᭮ થ ⠥    
 ᥪ஢. ᫨  ⥭ 砫 訡,  ⠭-
 ᮮ⢥騥  訡. ⥬ ⠭ DRQ
  뢠.

      DRQ ᥣ ⠭ ᨬ    ⮣,  뫠
訡  .

     ᫥ 襭   ஢    ᮤন
樫,    ᥪ ᫥ ⠭ ᥪ-
.

     ᫨ ந室 訡,  ⥭ 蠥  ⮬ ᥪ-
,  ந諠 訡   ஢  ᮤন  -
,   ᥪ,  ந諠 訡.

     訡     ᥪ஢.


     9.14 Read Verify Sector(s)
     /஢筮 ⥭ ᥪ()/

       筠  Read Sectors,  ᪫祭
⮣,  DRQ   ⠭    뫠-
. . ⮪  10.3. ᫥ ਭ  ᪮  -
 BSY.

     ᫥ 砭 ஢ન  襭  ᥪ஢,  ᪮
頥 BSY   뢠. ᫥  襭  
 ஢  ᮤন 樫, ,    ᥪ-
 ᫥ ஢७ ᥪ.

     ᫨ ந室 訡,  ஢ઠ 蠥  ᥪ,
ᮤঠ饬 訡.  ஢  ᮤন 樫, -
   ᥪ,  ந諠 訡.    稪
஢ ᮤন ᫮   ஢७ ᥪ஢.


     9.15 Seek
     /⠭/

       ந ⠭  ஦  롨ࠥ -
, ।   . . ⮪  10.3.  -
   ⠭ DSC=1,       襭.
᪮  ⢫ 뢠  ०,  祬  ⠭
襭.

     ᫨  ६ ⠭  ᪮ 뤠 㣠 ,
   ⠭ BSY=1, ⠭    ⥬  -
 믮 .

      H  ᯮ  室   -
  ॠ쭮 䨣樨. 

                                        9.16 Set Features
     /⠭ ⥩/

       ᯮ   ⠭ ᫥ -
஢,    ᯮ짮   ⥩
᪮:

44h 쭠   -⮢⥫  ECC- 
      ⥭/ (Read Long/Write Long)

55h 頥 ०饥 ⥭

AAh  ०饥 ⥭

BBh ਬ 4- ⭮ ECC-      -
    / Read (Long/Write Long)

     . ⮪  10.3. ᫨ 祭  ॣ  ন-
  ⨬,  ᪮ 뤠 訡  "४饭
" (Aborted Command).

      祭 ⠭  ᫥ ⭮  ணࠬ-
  ⠭   㬮砭 ०  ०-
饣 ⥭  4-  ECC-.


     9.17 Set Multiple Mode
     /⠭  /

        믮 樨 筮 ⥭ 
 (Read Multiple  Write Multiple)   ⠭  
   . . ⮪  10.3.

       稪 ஢ 㦠 ᫮  ᥪ஢  
.  ⥫  ন 祭 2, 4, 8  16
ᥪ஢  ,  ᫨ ࠧ    ࠩ   8192
 (8 ),    ন  㣨 ࠧ  .
᫥ 祭  ⥫ ⠭ BSY=1  ஢-
 祭   稪 ஢.

     ᫨  稪 ஢ ᮤন ⨬  -
    ࠡ뢠 ⥫,   -
 㦠   ᫥    Read  Multiple  
Write Multiple  믮   ࠧ蠥. ᫨ -
 뫪     ন,        뤠    訡
"४饭 " (Aborted Command)   믮  
뫮 .

     ᫨  稪 ஢ ᮤন 0,    믮
 Read Mutiple  Write Multiple .

     ᫥ 祭 ⠭, ⭮  ணࠬ -
 ⠭   㬮砭 ० -    Read
Multiple  Write Multiple ஢.


     9.18 Sleep
     /⠭/

       - ⢥ ᯮᮡ ॢ ᪮   -
 ⠭ (Sleep Mode). ᫥ 室  ⥫    ०
⠭ BSY ,  뢠  䥩 -
室  ⨢ ०.

     ⢥ ᯮᮡ 뢥 ⥫  ० ⠭
 몫祭 ⠭  ⭮   ணࠬ
.

     ᪮   室    ⠢  -
 ⠭ ᫥ ᫥⥫쭮 ᮢ. ᫨    㦥
 頥,  ᫥⥫쭮 ⠭ ᪠    
믮.


     9.19 Standby
     / ०/

       ॢ ⥫      ०.  .
⮪  10.3. ᪮   뢠 뢠   
,  室   ०  襭.

     ᫨  㦥 ⠭,   ᫥⥫쭮  ⠭
᪠  믮.

     ᫨  맮   稪 ஢ ᮤন
㫥 祭,  ࠧ蠥  믮  ⮬᪮
室   ०  ᨣ ⠩.  ⮬ 祭
 ⮬ ॣ  ६ ⮬᪮ 室   -
 ० ᫥ ᫥ 믮   5-  ᥪ㭤
⨪. ᫨  稪 ஢ ᮤন 0,   ⮬-
᪨ 室   ० 頥.


     9.20 Standby Immediate
     /H।⢥ 室   ०/

       ॢ ⥫      ०.  .
⮪  10.3. ᪮  뢠 뢠 ०, 祬
室   ० 襭.

     ᫨  㦥 ⠭,   ᫥⥫쭮  ⠭
᪠  믮.


     9.21 Write Buffer
     / /

           १  ᮤন
 ᥪ஢ ᪮  묨 ॡ㥬묨 묨. . -
⮪  10.2.

      Write Buffer  Read Buffer    㯯-
  ⠪ ᫥⥫쭮, ⮡        
⥬- 512 ⠬ . 


                                        9.22 Write DMA
     /  /

       믮 筮   Write  Sectors
஬ ᫥饣:

-  樠 ᯮ㥬 -  뤠 ;

- ।  ࠢ DMARQ  믮  ᯮ㥬
  -;

- ⥫  ⮫쪮  뢠  , -
   㪠,  ।  訫  ⥫ -
  㯥. 

      訡, ந襤  ।     -
  砭 ।   ⮬ ᥪ,  ஬ -
諠 訡. H⥫   뢠,  ᨣ-
饥  砭  ।   .   訡   ॣ
⠪-,    Write Sectors.


     9.23 Write Multiple Command
     /  ᥪ஢/


      Write Multiple  믮   筮   
Write Sectors. ᪮ ⠭ BSY  祭  400    
뢠     ᥪ,  ⮫쪮   -
। ,  ᮤন ᫮ ᥪ஢, । -
 Set Multiple.

     믮  筮 樨 Write Sectors  -
祭 ⮣,  ᥪ, ।  Set Multiple
६  뢠.  DRQ ⠭  ⮫쪮  
砫  ,     ᥪ.

       뫠  뢠 ᥪ஢ ணࠬ-
  Set Multiple Mode,    믮-
   Write Multiple.

     ᫥ 뤠  Write Multiple  稪  -
஢ ᮤন ᫮ 襭 ᥪ஢ ( ᫮   
稪 ). 

     ᫨ ᫮ 襭 ᥪ஢   楫  ᫮
ᥪ஢  ,  ६頥 ᨬ쭮 ⢮  ᥪ-
஢ 筮 뫪,  ⮪ - 筮 筮 -
.

     ᫨  Write Multiple  맢  ।    Set
Multiple Mode  ᫨   Write  Multiple  饭,  
ந室 訡 "४饭 " (Aborted Command).

     ᪮ 訡  Write Multiple ॣ -
        ᥪ஢.  믮-
   稢 ⥬ ᥪ஬,    ஬  -
諠 訡,  ᫨  ᥪ 室  ।  -
.  ⮬  ᫥騥     ।.  뢠
  ⠭ DRQ  砫      -
 .

      ஢  ᮤন 樫,     
ᥪ,  ஬ ந諠 訡.  稪  ஢
ᮤন ⮪ ᥪ஢,    ।  -
譮 襭 . Hਬ, ᫨   ᮤন
4 ᥪ,    7  ᥪ஢    訡  諠  
쥬 ᥪ,   稪 ஢ ᮤন 5,    
 ஢  ᮢ ⨩ ᥪ.

     訡 ⠪-,    Write Sectors.


     9.24 Write Same
     /ୠ /

       믮 筮   Write  Sectors
 ᪫祭 ⮣,  뫠 ⮫쪮   ᥪ  -
. ন ᥪ 㤥 ᠭ  ।    襥
६.

HH:  Write Same 믮 樠   
          ᥩ ।  믮  .

     ᫨  ⥩ ᮤন 22h,  ⥫ -
 樠஢  稪 ஢, H  -
, H   H⥫/. ᫨ 
⥩ ᮤন DDh, ⥫  樠஢
 㯭 짮⥫ ।. ᫨  ⥩
ᮤন 祭, ⫨筮  22h  DDh,  
ᣥ஢ 訡 "४饭 " (Aborted Command).

     H⥫  뢠 ᫥ 믮 .
  訡 ந室 뢠 믮  -
樨 .  訡 室     訡.  訡
⠪-,    Write Sectors.


     9.25 Write Long
     / /

         Write Sectors    ᪫祭
⮣,  뢠      ࠢ  -
 (ECC-) ।⢥   ᥪ஢; ᠬ  -
⥫    ECC-.

     । ⮢ ECC-   ࠢ 訡 ந-
  8- ⭮ 設.


      9.26 Write Sector(s)
     / ᥪ()/

       뢠  1    256  ᥪ஢.  ⢮
ᥪ஢ ।   稪 ஢. H  ᮮ-
 256 ᥪࠬ. । 稭  ᥪ, ᠭ-
   H . . 10.1  । -
  ᨣ DRQ, IRQ  BSY  । .

     ᫥ 祭   ⥫  ⠭  DRQ  
,      ᥪ஢. 뢠   -
,   ᥪ஢   ࢮ  樥  -
. ᫥   ⥫ 頥 DRQ, ⠭-
 BSY  稭 믮 .

     ᫨   室  㦭 ஦,    -
 㤠. ᫥ ⠭  ॡ㥬 ஦  -
⥫  ࠧ  䨪 (ID).

     ᫨ ७ 饭    묨 -
ᠬ ॡ㥬 䨪    ,    뤠  訡
"䨪  " (ID Not Found).

     ᫨ ७ ࠧ襭,  ᫮ ⮪ ᪠ -
䨪  ॣ樨 訡   ⭮  -
⥫   ⥫.

     ᫥ ࠢ쭮 ⥭ 䨪     
ᥪ஢ 뢠     ᥪ    ᮯ஢
⠬   ࠢ 訡.

     ᫥ 襭   ஢    ᮤন
樫,    ᥪ ᫥ ⠭ ᥪ-
.

     ᫨ ந室 訡,   蠥  ⮬ ᥪ-
,  ந諠 訡   ஢  ᮤন  -
,   ᥪ,  ந諠 訡.     -
  ஢   ⮡  ।,    ⭮
ந諠 訡.


     9.27 Write Verify
     /  ஢મ/

       筠  Write Sectors,   ᪫-
 ⮣,  ࠧ ᫥  ᥪ ந  -
ઠ.  ஢ન -  ⥭ ᥪ  ஢ઠ 訡
     ।  .  祭    室
஢ન 訡 ॣ.   ᪮쪨  ᥪ஢
᭠砫 ந    ᥪ஢,    ⥬  ஢ઠ
 ᥪ஢ । 襭 樨.


     10. ⪨  ⮪

        㯯஢  ࠧ    ᮣ-
᭮ ⮪ 믮 .    易-
   ⮪ ᠭ .

            । ஢  
BSY. ᫨ BSY=1,   ⢨      ந,
  ⠭ BSY=0.  設⢥      ⠪  
 DRDY=1  த.  ,   㪠
DRDY=x,   믮  DRDY=0.

     ।   ࠧ ⨯ ⥫    믮-
  㣨 ᯮᮡ,   ⥫   ন-
  ⮪ ⠭ ATA.


     10.1  ணࠬ  

       砥 :

- Identify Drive /஢ ᪮/
- Read Buffer /⥭ /
- Read Long / ⥭/
- Read Sector(s) /⥭ ᥪ()/

     믮  砥  ।    
512-⭮ ᥪ (    砥    ⥭  (Read
Long))   ⥫  .

)  뢠  㦭 ࠬ   ⥩,
   稪 ஢, H ,   H⥫/-
   .

)  뢠     .

) ᪮ ⠭ BSY  ⮢  । .

)  ᥪ , ⥫ ⠭ DRQ  頥
   BSY  뤠 INTRQ.

) ᫥ 㦥 ᨣ INTRQ   ⠥    -
   ﭨ, ᫥ 祣 ⠥   ᥪ    १  
   . ᫥ 饭   ﭨ ᪮ ᭨-
    INTRQ.

) ᪮ 頥 DRQ. ᫨ ॡ । ண ᥪ-
   ,  ᪮ ⠭ BSY  㯮  ᫥-
   ⥫쭮   㭪 ).


     10.1.1  ணࠬ ⥭

 )  ) Ŀ      ) Ŀ      ) Ŀ
 .      ⥭।砳..... Read Transfer
ࠬ.             .....Status  Data  
Ĵ     Ĵ     Ĵ
BSY=0        BSY=1 BSY=0          BSY=1 BSY=0          BSY=1
       DRDY=1                                        
                    DRQ=1          DRQ=0 DRQ=1          DRQ=0
                    .             .   
                    INTRQ  INTRQ          INTRQ  INTRQ

     ᫨ ந室 訡, ⥫ ⮢  । 
 ந    室   .


          10.1.2 ࢠ  ணࠬ ⥭

         )  ) Ŀ         ) Ŀ
         .          Read 
        ࠬ.          Status
        Ĵ        Ĵ
        BSY=0        BSY=1    BSY=0  
               DRDY=1                
                               DRQ=1  DRQ=0
                               .   
                               INTRQ  INTRQ


      DRQ=1,     ,  
 ।.


     10.2  ணࠬ 뢮 

  砥:


- Format /ଠ஢/
- Write Buffer / /
- Write Long / /
- Write Sector(s)  / ᥪ()/


     믮  砥  ।    
512-⭮ ᥪ (    砥    ⥭  (Read
Long))     ⥫.

)  뢠  㦭 ࠬ   ⥩,
   稪 ஢, H ,   H⥫/-
   .

)  뢠     .

) ᪮ ⠭ DRQ,   ⮢ ਭ .

)  ।  ⥫  ᥪ   १  
   .

) ᪮ 頥 DRQ  ⠭ BSY.

)  ᪮ 訫 ࠡ ᥪ,  頥 BSY  
   ⠭ INTRQ. ᫨ ॡ । 㣮  ᥪ-
   ,  ᪮ ⠭ DRQ.

) ᫥ 㦥 INTRQ  ⠥  ﭨ.

) ᪮ 뢠 ॡ 뢠 INTRQ.

) ᪮ 頥 DRQ. ᫨ ॡ । ண ᥪ-
   ,  㯮 ᫥⥫쭮    -
    ).


     10.2.1.  ணࠬ 

 )  ) Ŀ      )       )  )       ) Ŀ
 .           ⥭.....⥭
ࠬ.                          .....    
Ĵ     Ĵ     Ĵ     Ĵ
BSY=0        BSY=1 BSY=0 BSY=1 BSY=0       BSY=1 BSY=0  
       DRDY=1                                       
                    DRQ=1 DRQ=0 DRQ=1       DRQ=0       
                                .          .   
                                INTRQ  INTRQ       INTRQ  INTRQ


           10.2.2 ࢠ ணࠬ 

         )  ) Ŀ        ) Ŀ
         .        ⥭
        ࠬ.             
        Ĵ       Ĵ
        BSY=0        BSY=1   BSY=0  
               DRDY=1               
                              .   
                              INTRQ  INTRQ


     10.3   

       砥:

- Execute Drive Diagnostic (DRDY=x) /믮 ⨪  -
  ⥫ (DRDY=x)/
- Idle /室  ᨢ ०/
- Initialize Drive Parameters (DRDY=x) /樠஢  -
   ᪮ (DRDY=x)/
- Read Power Mode /⥭ ० ⠭/
- Read Verify Sector(s) /஢筮 ⥭ ᥪ()/
- Recalibrate /४஢/
- Seek /⠭/
- Set Features /⠭ ⥩/
- Set Multiple Mode /⠭  ०/
- Standby / ०/

     믮    ᬠਢ   ।
.

)  뢠  㦭 ࠬ   ⥩,
   稪 ஢, H ,   H⥫/-
   .

)  뢠     .

) ᪮ ⠭ BSY.

) ᫥ 襭 ࠡ⪨ ⥫ 頥 BSY  ⠭-
    INTRQ.

) ᫥ 㦥 INTRQ  ⠥  ﭨ.

) ᪮ 뢠 ॡ 뢠 INTRQ.


     10.4  

       砥:

- Read Multiple /⥭  ᥪ஢/
- Sleep /⢭/
- Write Multiple /  ᥪ஢/
- Write Same /ୠ /

     ⮪   ᮤঠ  ᮮ⢥  -
 .


     10.5  ।    (⥫쭠 -
).

       砥:


- Read DMA /⥭  /
- Write DMA /  /


     । , ᯮ騥   אַ  㯠  
   ⫨  ணࠬ :

-  ।  ᯮ -;
-  । ᪮쪨 ᥪ஢ ஬ 뢠  
  ⢫.

     樨஢  ।      筮  
⥭ ᥪ   ᥪ,  ᪫祭 ⮣,  
 樠஢ ᯮ㥬 -  뤠 -
. 

    ணࠬ ࠡ⪨ 뢠 ﯥ।   ⫨砥
᫥騬:

-  । ᪮쪨 ᥪ஢   ᥪ 뢠
   ⢫;
-       ⥭ ﭨ ⥫.

     ⮪ אַ 㯠      ᮪䥪-
⨢  樮 ⥬ ࠭ ந-
⥫  ୮ ६, 易  ணࠬ
  ⥫.


)  

   1)  樠 ᯮ㥬 -
   2)  㦠  ஢ 
   3)       

)  । : ᮤঠ ॣ஢  㯭 
   祭 䠧 ।   .

   1) ᯮ㥬 - ந  ।    /
      ⥫  ᯮ짮 ᨣ DMARQ.

)  ﭨ

   1) ᪮  ॡ 뢠 
   2)  뢠 ᯮ㥬 -
   3)  ⠥  ﭨ   訡


     10.5.1 Hଠ쭠 । 

     )  Ŀ       ) Ŀ       ) Ŀ
    .      ।砳      ᳗⥭
                                   
    Ĵ      Ĵ      Ĵ
    BSY=0         BSY=1  BSY=x           BSY=1 BSY=0
                         DRQ=x           
                                         nIEN=0


     10.5.2 ४饭 । 

     )  Ŀ       ) Ŀ       ) Ŀ
    .      ।砳      ᳗⥭
                                   
    Ĵ      Ĵ      Ĵ
    BSY=0         BSY=1  BSY=x           BSY=1 BSY=0
                         DRQ=1           
                                         nIEN=0


     10.5.3 ४饭  

     )  Ŀ       ) Ŀ
    .      ᳗⥭
                         
    Ĵ      Ĵ
    BSY=0                BSY=1 BSY=1  BSY=0
                         nIEN=0


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