 SU.HARDW.PC.PERIPHERAL (2:5020/140.13)  SU.HARDW.PC.PERIPHERAL 
 From : Vadim Baranovsky                    2:5030/103.4    Sat 12 Mar 94 16:39 
 Subj : Re: .쪠...                                              


[᪨y]
ᯮ  稬  pp!  祫 ᤥ訩  pᨭ
 AT/XT :
p p樨 p 8 pp來 p y ᯮ짮 A0-A9, AEN
 16-pp來 : A1-A9,AEN   ᨣ ᮢ⭮  A0 - 訩 
,    ᮢ⭮  -SBHE  p訩  , ᨣ y砥  A1-A9,AEN
-  IOCS16
 p樯  16 ⭮ p    ᯮ짮 SBHE  A0 ,  ⮬
y砥     ⠯   ᯮᮡ p p⠭騪  p
p饭  p⠬   ᡮ( p  p砫  ⨬ ᠬ , 
襯p ᯮᮡ p⠥  p )
᫨   ᯮy    y  p뢠 ᨣ DACKx 
p뢠  DREQx p祬 y    pyᬮp  ⪫祭
pp  pאַ p  IOWR/IORD  y砥 ⨢ 襣 DACKx

 IK>  ࠧ   ࠢ筨     ࠦ ᮫⭮-  ᭠砫

  ᮢᥬ p -   p y砫  p  ᮢ
p筨.

 IK>  㤨,  ᠬ ணࠬ, ஥  
 IK> AEN, ᠫ    直 ࠧ, ᫨   묨 室  , 
 IK> ᫨  -  뫮  ଠ쭮.

-

 AK>>  531- p? H 20-25 p.  DX-50 p⠥   㦦.  555-
 AK>> p  奬    ᪫ , p  㤠. :(

 IK> ஡  1533;  ᥩ  ⪠ 7-    555- 
 IK> ࠢ ࠡ . Ilja

 ᠥ p p  ᯮ짮:  y訩 p  74ALS
 1533 -   ⠪- p  531  (p浪 7-15 ns) 
⢥ y⢮p  py筮 ᯮᮡ 設 ISA
 ᯮ짮  555 (74LS)
H ᯮ짮 531  155
 ᯮ짮 1556    556 -  室 ⮪ p ⮪ 1533 . 10%
( )

 ᠥ ᨣ BALE - p p饭  p⠬ -뢮  ᨣ
  y - ⠪    ⭮襭     y 
饫 pᮢ y   LA17-LA23 ( ⨬  p 
p  横,  ⢨⥫ ⮫쪮  p BALE)

