                          

                            N 5

                     2 
               2    ()

      饥  ६   ᪮쪮 ᭮ ⠭⮢ 
䥩    -, ࠧࠡ⠭ ࠧ묨 ଠ:
     ST506/412 - ࠧࠡ⠭ ମ Seagate Technology, ਬ
 ࠭  IBM PC/AT,   ᪮ ।    0,6
/  MFM-஢  0,9 /  RLL-஢;
     ESDI (Enhanced Small Device Interface) - ࠧࠡ⠭   -
樠⨢  Maxtor,   饥 ६ ᭥  뭪  -
 ஢    १  ⪮ ७⭮  
䥩ᠬ IDE  SCSI;
     IDE (Integrated Drive  Electronics)  -  ࠧࠡ뢠  
஫ ANSI   ᯥ䨪樨 ANSI    ATA, ATA-2,
ATA-3,  ᪮ ।    16,5 /;
     SCSI (Small  Computer  System Interface) - 㭨ᠫ -
䥩,  । ମ Shugart Associates     쭥襬
ࠧࠡ뢠  ஫ ANSI,  ᪮ । 
 40 /.
     IPI (Intelligent Peripherial Interface) - ਬ  㭨-
ᠫ ᫨⥫ 設,  ᪮ । 
 10 /,     䠩-ࢥ஢ ᭥  -
  襢 䥩ᮬ SCSI.

                         䥩 ESDI

      䥩  ST412     । ࠡ-
⠭ ᨣ,  ।⠢騥  ᥡ ᬥ ⮢ ᨭ஭樨
 .    ⮢ ந 奬, 室-
  .  ⮬ ᯥ樠 奬 䠧 ⮯ன-
   ,  ࠢ塞 殮, ᫥  -
 䠧 室 ᨣ  ᮮ⢥騬 ࠧ -
 奬 ࠧ.
      䥩 ESDI 㭪樨 ࠧ   ७ᥭ  -
।⢥  ⥫.     ᭮ २-
⢠: -,  㬥襭 ⭮ ᪠ ᨣ  
१ ।   ,  -,  -
 ࠨ ᠬ ࠧ⥫   ࠪ⨪ -
  ⥫.
     ESDI -  㭨ᠫ  ⮩稢  䥩,  
।祭  ࠡ  ਩묨 ன⢠  ⨯.
䨪樨 ESDI । ᪨    䨧᪨  䥩
 ஫஬  ,   ।  ᯮᮡ । -
  ஫஬  ஬,  ᯮᮡ  ଠ樨
 譥 ன⢥.
.
                              - 2 -

     祭 譨 ன  䥩 ESDI:

                          ࠢ
           ͻ
                         Ŀ       Ŀ
                          ன⢮ 1   ...   ன⢮ N 
                                
 Ŀ                               
  ஫ ͼ                      
                                             
     ESDI    ͼ
 
                 
    


                          䥩 IDE

     䥩 IDE   ࠧࠡ⠭  ⢥ ண ୠ-
⨢ 䥩ᠬ ESDI  SCSI. ⫨⥫쭠 ᮡ ⮣ -
䥩 - ॠ 㭪権 ஫  ⥫.   ⮬
,   ஬筮  ⥬ 設   
 ।⠢  ᮡ 쭮 ⮥ ன⢮,  ᮤঠ饥
  ᮢ ஫   ନ஢⥫  ᨣ
䥩.  䥩         .
ꥬ  ᪠   ॢ 504 Mb.
      砥    40- :

                     Ŀ  Ŀ
                       N1     N2 
                       
                             IDE  
                          ͼ
                          
                   Ŀ
                     IDE 
                   
                          
            
       

     ਬ砭:   N1 뢠 "騬" (Master),   N2 -
"" (Slave); ᪮  ⥫ 祭   
⮬  ,   ⥫  ४⥫ﬨ  -
 ⥫.   ⠭ ண ⥫  騢
᪮     室 ⥫쭮  ,
⠢塞 ଠ - ⠢騪     -
.
                              - 3 -

⥫ ( -⮢⥫ ४⥫   ⠭-
   "Master").
     䥩 Enhanced IDE (Fast ATA)      
4- ன  ࠧ  ⨯ (⥫  ⪨  -
᪨ ᪠)   504   (   
 ப த  ᪨  䥩ᮬ EIDE  4Gb).

                         䥩 SCSI

     䥩 SCSI । 設   業ࠫ -
஬  ᪮쪨 ,       ᢮  ᮡ-
⢥ ஫.   ᪨  䨧᪨ ࠬ஢
⮩ 設,  䥩 SCSI । ⥬ ,    
ன ன⢠, 祭  設, ⢫  
ᮡ.

   Ŀ Ŀ          Ŀ
    ன⢮ 1   ன⢮ 2    ...     ன⢮ N 
              
                                                    
   Ŀ Ŀ          Ŀ
    ஫ 1   ஫ 2    ...     ஫ N 
              
                                   SCSI         
          ͼ
                           
                    Ŀ
                      SCSI 
                    
             
       

     䥩 SCSI ।ᬠਢ ।   ࠫ-
 8-ࠧ來 設  ᪮  4 /,  䥩 SCSI-2
-  8  16-ࠧ來 設 ( ᪮ﬨ 10  20 / ᮮ-
⢥. 䥩  SCSI-3  ࠧࠡ뢠   㤥 
।   ᪮ 40 /.


                 ST412

      ⪮ ᪠ :
     1) ন ଠ   ᪥, ᮢ⨬  ଠ-
⮬  IBM;
     2) ন  ⮫쪮 ⠭,  ⠪  
짮⥫ ⨯ ;
     3) ஢ 뢠 IRQ14;
     4) ⢫  ॡ㥬 樫஢  ६  

                              - 4 -

   (᫨  室   ॡ㥬 樫,  
樨  ,  ⥬ 믮 ⥭   -
ଠ樨);
     5) ⢫ । 뢠    ᮮ-
⢨  ࠬࠬ 祭 ;
     6) ந ⮬᪮ ४祭  -
 (  㦥  ஦  ६ ᥪ୮ -
  롨ࠥ ᫥ ஦,    㦥 
樫 - ᫥騩 樫,  ᫥ 祣 த 믮-
 );
     7) 㦨  訡  뢠 ଠ樨  ४-
஢  訡   11 ;
     8) ࠢ  ᫥⥫쭮 ࠧ饭 ᥪ஢  -
஦ (।);
     9) ந  묨      ० ணࠬ-
 -뢮;
     10) ந ७ ⨪  .

     稢         १ ணࠬ-㯭
ॣ,   稭 믮  .  ।  
  뢠 ,  ⠪ ਥ   뢠-
  ந室 १    , -
室  ᮣᮢ ६ ࠬ஢  묨 -
   ⥬ 設,   ⠪  ४樨 ଠ樨 (
 ଠ樨    ନ 横᪨  
஫ 訡,  ਯ뢠     -
䨪 ᥪ    ).

                        -

       1F0h ᯫ  믮 樨 -
   ᥪ  ணࠬ  ०  -뢮.  
ॣ 㯥,    筥  ⥭  .
।  ⢫ 16-ࠧ來묨 ᫮.

      訡 1F1h 㯥 ⮫쪮  ⥭.  ।
ﭨ  ᫥ 믮 樨. ﭨ ⮣ -
 ⢨⥫쭮:
     1) ᫥  믮 ,  ᫨ ⠭  "Error" 
ॣ ﭨ;
     2) ᫥ 믮  "⨪"  ᫥ 믮-
 ७ ⨪   ⥬ .
      ॣ 訡  ᪮  ०:  01h  -  
訡, 02h - 訡 , 03h - 訡  ᥪ, 04h -
訡  ᫥ ஫ , 05h - 訡 -
.
     祭 ⮢ ॣ 訡 ᫥ 믮  (-
⠭  1  稨 ᮮ⢥饩 訡):

                              - 5 -

      0 -    થ ᥪ;
      1 -  믮  "஢"   -
 ஦;
      2 - ਩ ४饭 믮 ;
      3  ᯮ;
      4 - ᥪ  묨 न⠬ (樫,  ,
ᥪ)  ;
      5  ᯮ;
      6 - 稥 ४㥬 訡 ;
      7 -  䨪 ᥪ 㦥 ⪠ 䥪⭮
ᥪ.

      ॣ ⮢ 樫 ।樨 1F1h (-
 ⮫쪮  )  㬥襭   4 ࠧ  ⭮-
  ⢨⥫쭮  樫, 稭  ண 
⢫    ।樥.

      ॣ 稪 ᥪ஢ 1F2h  ⢮ ᥪ-
஢,  ஥   ⠭    ᠭ.  祭 ⮣
ॣ 㬥蠥  1    ࠡ⪥    ᥪ.  
ᥪ୮  뢠  ᥪ  ᯮ  ᪥
᫥⥫쭮   㣮 (..      
뢭).
     !   0   ॣ  ந室  ࠡ⪠
256 ᥪ஢.
      ॣ 㯥  뢠 -  砥  -
 訡    믮 樨 ⥭    ⮬ -
 㤥 室 ᫮ ࠡ⠭ ᥪ஢.

      ॣ    ᥪ  1F3h 㦠 ⮢ 
ᥪ   ⥭-. ᫥ ࠡ⪨  ᥪ-
   ॣ   ᫥饣 ᥪ,  -
饣 ࠡ⪥.
      㯥  ⥭/.  ᫥ 믮 
 ᮤন  ᫥ ࠡ⠭ ᥪ.

      襣  (1F4h)    襣  (1F5h) ⮢ 
樫 । ⮢ 樫  믮 .
     !   ॣ  襣   ᯮ ⮫쪮 2
 ࠧ鸞.
      㯥  ⥭/.  ᫥ 믮 
 ᮤন ⥪騩  樫.

      ॣ 롮     1F6h  (㯭
 ⥭/)  ᫥騥 祭:
      0-3 -  ;
      4 - 롮  (1  2);
      5  6 - ࠧ ᥪ  (ᥣ  ᯮ  

                              - 6 -

 10, ᮮ⢥騩 ࠧ 䨧᪮ ᥪ 512 );
      7  ᯮ.

      ﭨ 1F7h, 㯭 ⮫쪮  ⥭, ⮡-
 ﭨ   .
     祭 ⮢  ॣ  ﭨ  (  ।-
 ﭨ  ⠭  ᮮ⢥饣  
 1):
      0 -  믮   ந諠  訡  ( 
뢠  㯫 ᫥饩 );
      1 - ᨣ "Index" ⨢;
      2 - ,    뢠  ᪠   
訡,   뫨 ᯥ譮 ᪮४஢;
      3 -     묨  ஬  ;
      4 - ,    ⥭- 訫 -
  ᥪ;
      5 - ࠢ ⥫;
      6 -  ⮢  뮫 権 ⥭,    
᪠;
      7 -  "",   ।   -
,   뢠 ᮤন ॣ஢ (  -
  ).

       1F7h ᯮ    㧪  믮塞
 (㧪   ந ⮫쪮 ᫥ ⮣,
 ⮢  ᠭ  ॣ 1F1h-1F6h   室
  믮 ).

      ࠢ 3F6h 㯥 ⮫쪮  . 祭
⮢ ⮣ ॣ ᫥騥:
      0  ᯮ;
      1 - ࠧ襭  뢠  (0 - ࠧ襭, 1 - -
);
      2 -   ( ந室  ⠭ ⮣
  1);
      3 - ࠧ襭 ᯮ짮  3   롮  
(0 - , 1 - ࠧ襭);
      4-7  ᯮ.
