---- ⮬  Z80 ----
--- ॢ: ३ 祢 ----
------- ZX 몠: Panda -------|

      Copyright 1992, Jack G. Ganssle

    ॢ:1997    (c)   祢   ३
஢ E-mail: master@satan.spb.su

 : Jack Ganssle, O᭮ -
⠭ TGG

RUSH>
    ⭮  !      ⠪ ਢ몫 
஬-஬   Z-80   -     
Spectrum'        ,  ଠ
Zilog,    ᮧ⥫,  ⠭ 
       ᢮      
த          ࠧ    
ᮢ襭  ⮬.
      ᪠,   㤥 
祭   쭥襣 ࠧ Speccy,
  ,     襬 饬
   Spectrum'  ᭠
 ࠬ  ...
    
               ॢ稪:

      ନ  饭  ᪨
⠬,㣨     ⠢     
ॢ.  饭   "᪨"
㯫  .⠢  ॢ
    "⥬"   ;-) 
 ⥪.

                 .

    Z80      ⮬  த  
१砩   묨.  ᮢ६
ﭨ  ⥪.

                ।᫮.

         ,    ४  
.  ୠ   㢥   ⮬,
 ⢥ ᯮᮡ ,
  ᠬ  ਫ -  50
Mhz  486    RISC  .  ᪮쪮
஥஢騪  ॠ쭮  ᯮ   
CPU  ஥ ⥬?

      ७樨  ஥ ⥬
Andy    Rappaport    ਢ   㡥⥫
㬥,           
ᮮ⭮襭       ந⥫쭮
           業,   
ਫ, ⢨⥫  ⮨⭮
䠪,smaller  CPUs    ஢
    묨   ⥪ࠬ.   筮   
। 8  16  CPU. 襢,
   襢 㬥⠫
।⢠              ࠡ.
᪨,  8  .      
ਭ      設,          設⢮
࠭  ਩ ன 
     ᯮ짮    
奬  訬 ᫮ ⮢  
⥣樨    ⠫. 16  32 . 設
 ᯮ  ᪮७ 뫮
  ᨢ ଠ樨. 
  ᯮ   믮 
᫮    ⢨         設
横.먣           ந⥫쭮
稢  ந襬    ⮨. 
㬠,      ⥪  
⢥      ᠬ     ஥஢騪
஥    ⥬.    뢠   4-.
⥪,           
⨬    襭        ᮢ
ந⢥,           ४
ᥬ⢠  8051,  80186,Z80    6800   
⮬.  ६   ६   
    ᥬ. 
ࠧ  롮   z80.

         ६ Z80 Technology

    Z80   祬  ⫨砥 
ࢮ砫쭮  ᨨ, ।⠢ 
  ।  70-.    ᮢ६  MOS
ᨨ    ᬨ᪨ ᪮. 
  ।   Zilog- ᮤন 20
MHz   .      த⢨
  뢠  ⮫  ᬨ᪨
 ⮨ ROM  RAM  ⥬.⮬
6      8   MHz   Z80       
ᯥ⠡묨    (ᠭ       92!:
ਬ..)     樨 z80
᫠,       ᮬ  訩  
,      ࠢ      ⥬   
8051.  ஢ z80     dead-end
line,᫨        ᮪⥣஢
  64180  Hitachi    z180  Zilog
, ᮤঠ   z80.

    64180/Z180  ய  
ᥡ  㭪樨,  ࠤ樮  ⭮騥 
਩   奬   .   ஥஢騪
ࠫ   ⥪,ᮢ⨬    Z80,
   짮⥫   Z80   
ᯮ짮     㯭        ०
ணࠬ     ᯥ祭.     Z80
⥪     ८ࠧ 
䨭ᮢ        㬥⠫
⥬                
ᮢ⨬.            
ਢ⥫      㬮魥 ⥬
,襣   ॡ   ࣨ  
 ᮪ ஢ ⥣樨.

              ᠭ 64180.

      64180  砥  ᥡ: 
16                 稪/⠩;
ணࠬ㥬  ஫  ॣ樨 
横   ;     ஫  DMA
();      ᫥⥫     
ணࠬ㥬     ᪮    ।.
                
ࠫ쭮  -뢮      㤥
 ⮢ .
    Like  the  Z80,  the 64180 supports 16
bit I/O addresses. Whenever an IN A,(C) or
OUT  (C),A  instruction  is executed, both
the  Z80 and 64180 issue the contents of C
as  the  low  order  port address, and the
contents  of  B  as the high 8 bits of the
address.  Unlike  the  Z80,  for which few
users  ever  needed  more  than  an  8 bit
address, 16 bit port addresses are crucial
to the chip's operation.
     ७ ਩ ன⢠
64180    ணࠬ   ⠬
/뢮.      ன⢮  
㭨      ,訥  8  ࠧ冷
   -  㫥.  १ࢨ஢  64
,          室   
      0000      003F.
樠஢  砫    ॣ஢
७     ன         :
0000,0040,0080,00C0.   ᮡ 
  ।饭  䫨⮢  ᠬ
譨 ⮢ -뢮.

         ணࠬ஢ 設 CPU.
 
   64180   ࠧ蠥  ᪨  롮
᪮쪨    ࠬ஢   設,   
⢮   横        
ன  -뢮( ᮣᮢ 
    譨 ன⢠
/뢮)      ᪮  ॣ樨.
     Z80,    64180    ⮬᪨
ந    横   ॣ樨,   ⮡
࠭              ᪮
.      ᪠      
,横    ॣ樨   ᭨
ந⥫쭮   ,⮬  
64180       .
  ࠢ ॣ樥 
⠭   ॣ樨, 
横        ࠡ饩
.           ⠭
ᨬ쭮       ॣ(०
ᮢ⨬    Z80).  讥 ⫨稥
⮨    ⮬,  64180   8.
    横 ॣ樨,  ६ 
Z80  7.    ᮦ,1 Mbit ᪨
  ॡ    ॣ樨  9. ,
⮬        室        ਬ
⥫  奬.

                 .

    64180         ᨬ   16
ࠧ來   ⠩,    ⠪
CPU's    clock.            
ணࠬ஢,     ⮡     ந
뢠,  室 ᮤন १
.                 ⮬᪨
१㦠  祭  ᯥ樠쭮
ॣ.  ⠩  16. ॣ
,  ⠥   뢠 
ந         16.  ॣ,
祭    ண  १㦠  
   室   ᮤন   ॣ
     १    0.        ⠩
⠭       ᯥ樠쭮
ॣ ࠢ.

          ᫥⥫ .

    64180  ᮤন    ᫥⥫
ன⢠.        -  ࠤ樮
ᨭ஭  UARTs  (ASCI  0    ASCI 1 ).
⨩  - ᯥ樠   ᨭ஭
.䥩    ন    
㯫,7    8  ⮢  ,  1  2
⮯-,                         ⨯
(./.),  ᨣ
ࠢ         ணࠬ㥬
᪮     ।    .뢠
                     祭
ᨬ,  訡    ⮬
  ।.  㥬  ᨭ஭
  (CSI/O)  -  ⮩  ᨭ஭ 8 .
㯫   .    ন
SDLC    㣨  ᨭ஭ ᮥ, 
ᯥ稢      ᨭ஭  ⮬
8051  묨  㣨 .

            ⥬ 뢠.

      Z80, 64180  ন
   ० 뢠 ( 0, 1  2
),   ᨬ      롮,ᤥ
ணࠬ⮬                   IM
権.஬    ⮣,   ন
     筨     뢠,    
७,⠪    譨(2 , ᥣ
4).   譨   筨  뢠
㯭  १  室 INT1  INT2,ᥣ
ࠡ뢠              ०      2
(୮),ᨬ    ࠭ 
⠫  室  ०. 㦨
뢠  CPU  頥    ⠡  
      롮ન     楤
ࠡ⪨    뢠(⠡   ஢
뢠).             ࠧ
ࠡ뢠    뢠    ७
ன  (  ० 2). Z80, 
०  2  ନ   ᮤন
ॣ  I(樠㥬   LD
I,A  -. )  8  ⠢塞
譨  ன⢮    横  (interrupt
acknowledge  cycle)  -. .
  堭 ࠭  64180  室
INT0. 뢠  室 INT1,INT2
    ७ ன ࠡ뢠
-㣮.  ॣ IL ᮤন 
5,6    7  ⠡ ஢ 뢠 
INT1,INT2  ७ ன.訥 8
      ॣ I ,   Z80.
室  INT1,INT2    ७  筨
  䨪஢  ᬥ饭    砫
⠡  ஢  뢠,⮬ 
4,3,2,1,0      ணࠬ⮬,
砫  ⠡    
ॣ I  IL.

              ⥬ .

    64180     筮  믮  
  Z80, ॥.  Z80
  ॣ,䫠,ᯮᮡ  樨.
    ணࠬ⮢ 室  Z80 
64180   祭   .  ᪮쪮  
    祭          
ਫ.
      SLP  ॢ  64180  ०
ࠩ  ॡ. 室  SLEEP
mode    ⮫쪮    뢠 
reset.
        8    ⭮   
㬭       祭   16   ⭮
१   믮      祭  17
ਮ  ⠪⮢  (17 T-states) 
  襭  饩  ந⥫쭮
   ᫥( ᭮ ⮩
樨                  㢥
ந⥫쭮         
楫᫥    䬥⨪,⠪        
䬥⨪    .⮩  :ਬ.ॢ.)
⠥    ॣ஢묨  ࠬ BC,DE,HL
  SP,祬 室 ࠭ ᮤঠ
  .    .  ,१   ⮩ 
ॣ஢ .
      ⨯  TST 樨 믮
ࠧ饥         㬥⮬   
஬.   TSTIO      ⢥
㬥 8   /뢮.訥
8        16.        ⮬᪨
뢠  0.

            ࠢ .

      २⢮ 16. ஢
뫠  ᮢ 訥 ꥬ
.᫨         設⢮        8.
ய஢,  Z80,  ᮢ
64    ,  16.  ᮢ 
ࠢ  1-16  . 訩 ꥬ 
ᯥ稢      ࠧ饭      襣
⢠           ᫮,
᫥⥫쭮                   訬
ﬨ,ணࠬ.  MMU  - 堭,
  ண 64180   
     64 , ࠭ 
⮬  ᮢ⨬    ⥬   
Z80.          樨    믮
-०           16.  ᭮
࠭⢥,      MMU  ८ࠧ  16.
             20.      ࠭⢮
"᪨"ᮢ     ८ࠧ    
࠭⢮   ᮢ  "䨧᪨".  
࠭⢮      "᪨"     ᮢ
ࠧ        3    :   0-3FFFH
८ࠧ          16   ᥣ
1Mb,ਬ      0-3FFFH      4000H-7FFFH
८ࠧ          16   ᥣ
1Mb,ਬ   10000H-13FFFH   8000H-FFFFH
८ࠧ          32   ᥣ
1Mb,ਬ     40000H-407FFH    
䠪᪨               䨣
㠫쭮("᪮")  .  
㦤  MMU    ࠬ    
,㪠             ,
   ন 
堭   ⮬᪨,    ࠧࠡ⪨
ணࠬ,  ॢ蠥 64K.

        㣨 Z80 ᮢ⨬ CPU.

    64180/Z180              ⢥
᮪⥣஢ ⮬ Z80.  Zilog
   Toshiba   த    ஢  
ࠧ      ⠭     ਩
ன        ⠫ 
    ⮣   鸞   
.      த   84013  
84015,   ᥡ  SIO(Z80
ᯥ      ᫥⥫     
/뢮),  CTC(᭮  ᯥ
Z80 ⠩).SIO  CTC  ⠢  稯
      ᢮   ।  
⭮ ᯮ.஬ ⮣  ⠢
84013    84015 Watchdog timer (ன⢮
  १᪠    ᡮ    ᠭ
ணࠬ:    ਬ.ॢ.)       ⠪⮢
.  84015     㪨 (
     ᮦ)      100
筮  QFP, 易  稥 PIO,
஬   ॡ   20   ⥫
뢮.      த            㣨
稯,᫥  ᭮ ᪮॥
"筨"     ணࠬ⠬.
8450    2K  ७ RAM  8401(Z80,
஥ 奬 ᮢ).

                  

    Does    anyone    really   know   what
processors  most  designers use? I believe
this  is  a  mystery.  Chip  vendors track
volume  sales  of  CPUs to determine which
ones  outsell the others. They're happy to
sell  100  million  CPUs  to one customer.
This  tells us nothing about the number of
designers  working with a chip. A thousand
applications  being  produced  in  hundred
quantities  amounts to few chip sales, but
lots  of  engineering.  What processors do
you  use?  Why?  Let me know and I'll pass
the information on to your fellow readers.
Softaid  -  Extraordinary  Emulators for 8
and   16  bit  CPUs  8310  Guilford  Road,
Columbia,  MD  USA. Phone: (410) 290-7760,
Fax: (410) 381-3253 Email info@softaid.com

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