      Ŀ
                                                                   
              S I N C L A I R    R E S E A R C H     L T D.        
                                                                   
                                                                   
                     ############  ###         ###                 
                     ############   ###       ###                  
                              ###    ###     ###                   
                             ###      ###   ###                    
                            ###        ### ###                     
                           ###          #####                      
                          ###           #####                      
                        ###            ### ###                     
                       ###            ###   ###                    
                      ###            ###     ###                   
                     ############   ###       ###                  
                     ############  ###         ###                 
                                                                   
                                                                   
        ####  #####  ######  ####  ###### #####  ##   ## ###   ### 
       ##  ## ##  ## ##     ##  ##   ##   ##  ## ##   ## ## ### ## 
        ##    ##  ## ##     ##       ##   ##  ## ##   ## ##  #  ## 
          ##  #####  #####  ##       ##   #####  ##   ## ##     ## 
       ##  ## ##     ##     ##  ##   ##   ## ##  ##   ## ##     ## 
        ####  ##     ######  ####    ##   ##  ##  #####  ##     ## 
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                     ணࠬ㥬  㪮              
                          AY-3-8910, AY-3-8912                     
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                                                   
                                  1991 .                          
                                                                   
      
.
                                - 2 -

                     孨᪨ ࠪ⨪ :

     1. 3 ᨬ 몠 
     2.  " 㬠"
     3. 2 ( 1) ࠫ  /뢮
     4. 16 ࠤ権 
     5. 16   
     6. ᭮  1.7734 
     7.  ந  :
                                          27   110 
     8.    :
                                          0.1   6 
     9.   㬠 :
                                          3   110 
.
                                - 3 -

        ணࠬ㥬  㪮 AY-3-8910, AY-3-8912.

     ணࠬ㥬  㪮 ()  ।⠢  ᮡ  ,
 ந ப  ᫮ 㪮 䥪⮢,  
 ᮯ   8/16 - ࠧ來 ஬.
        3  ணࠬ  ᨬ  㪮    ( 
8912 -  ) 8-ࠧ來 㭨ᠫ  /뢮.   
뤠 㪮 ᨣ   8 ⠢, ஬ ⮣   
㪮    "" 㬠.
     祭 뢮    8910    8912   㭪 1  2
ᮮ⢥⢥.
     DA0 - DA7 - / (㭠ࠢ),  ᯮ  -
                  묨  ய஬  ० ,   
                 ⠭  CS1, CS2  BC1, BC2  롨ࠥ -
                    DA) - DA3  ᭮ ०.
           ___
     CS1 - CS2 - 室 롮 奬;  ࠧ蠥  묨  
                    "1"  "2" ᮮ⢥⢥.
         _____
         RESET -   "0"  ॣ஢   -
                   .   ७  १-
                 ஬  +5 .

          BDIR - (BUS DIRECTION) । ࠢ  묨
                  設 DA0 - DA7. "0" - ⥭, "1" - .

     BC1  BC2 - (BUS CONTROL 1,  2) ᯮ  ࠢ ᥬ
                 設묨 ﬨ  .

                 Ŀ
                   BDIR     BC1      BC2       㭪樨      
                 Ĵ
                    0        0        1     ⨢       
                    0        1        1     ⥭     
                    1        0        1           
                    1        1        1       
                 
     
     
     A, B, C   - 室  ᮮ⢥饣 ,  ନ饣 ⠢
                 㪮 ᨣ   㤮  1 .

     IOA0-IOA7 
     IOB0-IOB7 - ࠫ   㭠ࠢ     /뢮,
                 ᭠ 묨 १ࠬ  +5 .

     TEST1 
     TEST2     - 뢮  ।祭 ⮫쪮  ஢ -
                 .  ॠ 奬   ᯮ    
                  ᥣ ᢮.
.
                                - 4 -

                          Ŀ
                --->  1           40  <--- +5 
                              AY-8910     
   ᯮ    ----  2           39  <--- TEST1
                                          
     <---  3           38  <---   
                                          
     <---  4           37  <--> DA0
                                          
   ᯮ    ----  5           36  <--> DA1
                                          
            IO B7    <-->  6           35  <--> DA2
                                          
            IO B6    <-->  7           34  <--> DA3
                                          
            IO B5    <-->  8           33  <--> DA4
                                          
            IO B4    <-->  9           32  <--> DA5
                                          
            IO B3    <-->  10          31  <--> DA6
                                          
            IO B2    <-->  11          30  <--> DA7
                                          
            IO B1    <-->  12          29  <--- BC1
                                          
            IO B0    <-->  13          28  <--- BC2
                                          
            IO A7    <-->  14          27  <--- BDIR
                                          
            IO A6    <-->  15          26  <--- TEST2
                                          
            IO A5    <-->  16          25  <--- CS1
                                          
            IO A4    <-->  17          24 o <--- CS2
                                          
            IO A3    <-->  18          23 o <--- RESET
                                          
            IO A2    <-->  19          22  <--- CLOCK
                                          
            IO A1    <-->  20          21  <--> IO A0
                                          
                          

              . 1 "祭 뢮  AY-3-8910"
.
                                - 5 -

              祭    ZX Spectrum.

      ணࠬ  ZX Spectrum ন .   ᯮ짮-
      㪮  ⥩  室     
⥬ 設 .  ⥩ 奬 祭    
. 3 ( ਬ AY-3-8910)

                                     Ŀ
__                2Ŀ             AY-3-8910 
WR  <Ĵ  1 1        27            
                  3    oĴ BDIR       4   ____ 10 k  Stereo
                 Ĵ 1         40          A ´____>
____   1Ŀ            Ĵ Ucc                        (L)
IORQ<Ĵ  1 3                 25                ____ 3.3 k   
       2    Ĵ        +5 <Ĵ CS1          ____> GND
A1  <Ĵ 1                  28                              
           5Ŀ        Ĵ BC2            ____ 20 k    
                 Ĵ  1 4        29               ڴ____
                  6    oĴ BC1          
       8Ŀ  Ĵ 1          1             3  ____ 3.3 k
      Ĵ  1 10          Ĵ GND     B Ŵ____Ŀ
A14 <Ĵ9    o                24                             
      Ĵ 1            GND <o CS2           ____ 3.3 k   
                            22               ____> GND
1.7 <Ĵ CLK                         
                             37 - 30                 ____ 10 k    (R)
D0 - D7<> DA0-DA7      ڴ____>
                                  23                           Stereo
RESET <o RESET      38 ____ 3.3 k
                                              C ____> GND
                                     

        .3 "奬 祭  AY-3-8910  ZX Spectrum"
.
                                - 6 -

                 ணࠬ஢  AY-3-8910/8912

        ॣ஢-ਥ஢ ஬ 㪮.  
㭪樨 믮 ।⢮ 16 ७ ॣ஢.  ॣ-
   4 訬 ࠧ鸞    "䨪 "
 ⠥ ⢨⥫  祭   ᬥ ⮣ .
      ⠡  ਢ  㭪樨 ॣ஢  ⨬ 祭 
 ॣ஢.

 Ŀ
  N ॣ  祭  ᮤঠ                 祭
 Ĵ
  0, 2, 4      8   ᮢ , ,       0 - 255 
  1, 3, 5     孨 4   ᮢ , ,     0 - 15  
  6           ࠢ ⮩  㬠       0 - 31  
  7           ࠢ ᬥ⥫  /뢮    0 - 255 
  8, 9, 10    ࠢ 㤮  , ,      0 - 15  
  11           8  ࠢ ਮ    0 - 255 
  12          孨 8  ࠢ ਮ   0 - 255 
  13          롮                 0 - 15  
  14, 15       ⮢ /뢮              0 - 255 
 

     ᭮  ࠡ   ॣ 7.    -
 - ।    ⢮  ࠧ 㪠 
। ࠢ  ⮢ /뢮.
         . 4. "0" ᮮ⢥ 祭 -
। 樨,  "1" - 몫祭.

  Ŀ
     7      6      5      4      3      2      1      0   
  Ĵ
                ⮭   ⮭   ⮭  
  Ĵ
   ࠢ     롮   㬠  롮   ⮭ 
   /뢮                                              
  

              . 4 " ᬥ訢  롮 "
.
                                - 7 -

    祭 ਭ  䥩ᮬ CENTRONICS   AY-3-8910

     ᯮ짮 奬 AY-3-8910      
ࠫ ਭ,    ⮢ /뢮.
     奬 祭    ⠥ ०.
     প ਭ      䥩ᮬ  ॡ  ᯥ樠쭮
ணࠬ ᯥ祭,   ஥ 室:  TLW2-AY,  ART STUDIO-AY,
LLIST/LPRINT-AY.

     Ŀ
        AY-3-8910    
                     13
               IO B0 > DATA 0
                     12
               IO B1 > DATA 1
                     11
               IO B2 > DATA 2
                     10
               IO B3 > DATA 3
                     9
               IO B4 > DATA 4
                     8
               IO B5 > DATA 5
                     7
               IO B6 > DATA 6
                     6
               IO B7 > DATA 7
                     21             ______
               IO A0 > STROBE
                     
                     14 _____ 510
               IO A7 Ĵ_____> BUSI
                     
     

              . 5 "奬 祭 ਭ  "

                              ਬ砭

      ,       1.7734  ୠ "BAJTEK" N  11
 1989 . ४ ᫥ 奬  :

          330 
          _____
     Ĵ_____Ŀ
                 
         Ŀ     Ŀ
      Ĵ  &   Ĵ  & 
     Ĵ      o      o>  22 . AY-3-8910
      Ĵ 3   Ĵ 3  
                 
                             
     Ķ
              470 pF
.
஬ 㪮.  
㭪樨 