RAM, Timers and I/O pinsCP Bus & Mux and RCPBusMuffler and ManifoldAlto Control Bus ReceiversAlto Control Bus DriversPrototype Ram ModuleClk Generator Ref. & Freq CompClk Generator & Backpanel DistributorTemp Sense, PwrOn, & LED CktsClk Generator Loop Filter and VCOMicrocomputer and EPROMSLayoutAdditional EPROMS & 7 Wire Interface0203BaseBd-Rev-Am.silSosinskiAm4/29/81040506PARCXEROXFileProjectDesignerRevDateDoradoReferenceTitle PageTable of contentsTITLEPageD O R A D O S C H E M A T I C STotal Pages01B a s e B o a r d07171615141312111009DAC and Current/Voltage SensingLoading InformationCP Bus Handoff and Watchdog Timer00CG -G G G 2I0.-I+)&#H%$!3H$72I70$3<?7.7-I7+9wrU$u2Gr92;t>GGr>;Gr:Gr#GrGrNXGGrNXGNG Grpru Vp [k4Nk MlkMkOr&3=&3H;A="=#=%=&3='O=(l=)=*BA; $= ====2=O=k=B $F@PFB>;6=:4=;P==?=@=AB6;LB=O=P=R=S4=TQ=Um=V=WBLBGGGr>;Gr:Gr#Gr GrGrNGNXGNXGGr0p <)AV$t)(%V$ 9',$(l-&W$,&W$+z&W$*^&W$)A&W$(%&W$'&W$%&W$$&W$#&W$"&W$F, 9$F*9$F)9$F(9$F'9$F&z9$F%^9$F$A9$I,PI+3I*I(I'I&I%I$32l1P03/-,+*)(l'O&3%#"3Ol]$z$$$$$$%$79$79$79$7$9$7A9$7]9$7z9$79$79$79$7 y9$7 777727O7k7777HkHHHHHHH3F$$FA$F]$Fy$F$F$F$F$+Wk+3|(((;*,P--;-X-t----,Ptk*k))H))AAr$-H$ )A$$)A$$ @+O+3++++++2%$.V$/1 V$1P2lIX;IX<IX>IX?4IX@PIXAmIXBIXCF;$F<$F=$F>$F@ $FA&$FBB$FC_$FY $FW$FV$FU$FT$FS|$FR_$FQC$IXYQIXX5IXWIXUIXTIXSIXRIXQ7EP7D47C7A7@7?7>7=7^9$7=B9$7R9$7T 9$7U&9$7VC9$7W_9$7X|9$7Y9$7Z9$7Q9$7P9$7O9$7O7P7R7S47TQ7Um7V7W7X7Y7Z0k0O030.k%|"O"O"&3(t pd3B$&3|;"X"X";&;&y$*:$]Vt2V |Hp!IG7H6,GLHKJ9Z$9tZ X$9 X|9$ Y9$ R_9$LB9$J-$9 J y$ J $] LB9$M_U$I$r H$ H$ M_U$ |X!t]5"O|Qv!3`$&X&Y&Z!3U$ @!3U$&U$ %^tZ%^\%^]5%^^Q!Z!\!^Q |Z Y W UZ T=%Qv X&\%tU&|W!tU!zX!zW$_n#|Qv#ltU/c./^]-|\1s[v1s^-_Z/Y>/`S0tbX0W^.eb|.e_J.d'U$1s]$.]|y$.]|$#W._&|W&X&Y&Z^V$\_V$[CV$T U$"sT $W9$]|V$t],sc $4;g5V$O1s|^/ZJ$U&e$/dJ$Y V$T-$-uhRp$R$$|K M M K$K$O$%O$@VOr$&_9$*:t_VO)Z&$3_J$3%:p JttZn.a)|/.u-Y,<+ *('&%$u#X"<! ;r/tr.ur(r+ r#Xr$ur%rXrX4^ $$"s +$$"t |XHt,PH.u2r"Orrt210/.-l,P+3*HH::3:O:k::::"O#l$%&'(H1H2r|-YHt0|tk|XHt(H'H& ARA<A"sM$# O?WMA|I!CtMDXPDXQDXSD{T-F|NFPFS!FUZ>tO-=|W>tQf>PJ>R>S>T>U>V>X>Y.>ZJAM=|T=UD4I!D{tUmD{VD{WD{X>;\_$FM$>;M_$>;M_$$=|S=R=Qv=PZ=O==N!=M=K?I!FT=FRFOFMBJ $y?KJ$98K&]$DXI$8H $AtZAuOQ?Wt7A|3uCt7DX;-DXF|9F;=F=vF?>t9=|AY>t;>:><>=>?>@->AI>Bf>C>DA7=|? =@=D43uD{t?D{@D{AD{C>;F$F7$>;7$>;7$$=|>=<=;=:=9=8u=7Y=6<?3uF>Ft =|>tH>+>d>>>>>>>+A =|=D4D{tOD{kD{D{>;A$F d$>; @$>; @$$=|=t=X=;= = = = ?FFF F tIpH +@tt? $DX$U8 9$8] $B$+S4+ZnPRHUW+N+O V|KZ VLv VI VH+tM+KHKM+T+U V|R VQv+tR+X5+YQ V|N VO VT K&$ K& +$KJ$ [ $ VU VWSRO=IHB$?Wt A|Ct DX#DX$DX&D{',F|!F#F&F(X>t",=|*>t$e>#H>%>&>'>(>)>+>,,>-IA =|'=(D4D{t(lD{)D{*D{+>;/^$F $>; ]$>; ]$$=|&=%=$u=#X="<=!= =?F'<F%F"F ?$DX$U8$At% ^ 1s_'9$\ [ YQ |SR)tZn &f , ,$!VOQ#l" 9w#tYQ 9'$?Wp3BV$,sc.$,sf $8tKm8588 -$-z$-A$-]$00008JQ-$$8J r$848I483883B $8-$84^ r$8-$8-$8y r$.$/$1 $#$#$#z$#3##&W7l$8#9#:#;#<#>#?489:;<>?4#@P@PA$%7$ 7$7$ $%|<%;%:%9%8u%7Y%6<%5 5 <:8u6<;97Y%?{$%>^$%=B$%<%$s@$s?{$s>^$s=B$s<%$s; $st=s>s?s@s(=(!V<!V;!V:8 $8z 9$!Vt7:uC<pb <`g r2% $w6PktUmkVN$ |RR U$dkU$@kUN$ tUVC$$V VCU$kTQkUN$ |QvQv T$dkT$@kTN$ tT U&U$U&]$U&$@ Q$ |M S|9$ktOQkPN$ |LvLv O$dkO$@kON$ tOP&$O$|KZ P&$ktN4kON$ |KZKZ N{$dkN$@kN{N$ tN O U$I42|I!2E=L@$I$yI$yI{@$tLUM_$UO $UG$|CwW_S|M_rItOR V$rwQC V$$V@$ tPmPmUTrJN5N|5N19@$6,$y6,$y6 @$+t9;;P; $r:$r2%$y7l953M;H OQNOQ UmUm VNV8 ,GNiL125242322211918171615141312111098393420353837363332313029282726765432401252423222119181716151413121110983934203538373633323130292827267654324012524232221191817161514131211109839342035383736333231302928272676543240125242322211918171615141312111098393420353837363332313029282726765432403211591011127654131461235479101112131415XEROXFileProjectDesignerRevDatePageMcCreightDorado Base BoardRam, Timers, and I/O pinsESRRRSSTTTTTTTTE'E'S1S2S4Q0'Q1'Q2'Q3'Q4'Q5'Q6'Q7'VCCGNDMCReset'MCClkMCA.06MCA.05MCA.04MCA.03MCA.02MCA.01MCA.00MCD.7MCD.6MCD.5MCD.4MCD.3MCD.2MCD.1MCD.0MCA.10MCIRQ'MCA.09MCA.08MCA.07MCIRQ'MCA.10MCD.0MCD.1MCD.2MCD.3MCD.4MCD.5MCD.6MCD.7MCA.00MCA.01MCA.02MCA.03MCA.04MCA.05MCA.06MCClkMCReset'GNDVCCVCCGNDMCReset'MCClkMCA.06MCA.05MCA.04MCA.03MCA.02MCA.01MCA.00MCD.7MCD.6MCD.5MCD.4MCD.3MCD.2MCD.1MCD.0MCA.10MCIRQ'MCIRQ'MCA.10MCD.0MCD.1MCD.2MCD.3MCD.4MCD.5MCD.6MCD.7MCA.00MCA.01MCA.02MCA.03MCA.04MCA.05MCA.06MCClkMCReset'GNDVCCRam0'Ram1'Ram2'Ram3'Ram0'Ram1'Ram2'Ram3'...LS138DAC.7DAC.6DAC.5DAC.4DAC.3DAC.2DAC.1DAC.040016DDR=40140216DDR=403161616161616480482500502580582DDR=501DDR=503DDR=481DDR=483DDR=581DDR=583[ 0, 1FF]1616DoradoRRSSTTTTTTTTA0'A1'A2'A3'B0'B1'B2'B3'REA'EB'RAS2AS1BS2BS1MCA.15MCA.14MCA.13LS139GNDExtraRam'.........Basic Ram coversMCPBus.00MCPBus.01MCPBus.02MCPBus.03MCPBus.04MCPBus.05MCPBus.06MCPBus.07MCPBus.08MCPABus.0MCPABus.1MCPABus.2MCPStrb(can toggle Strbby INC-DEC)CVCCCVDDCVEECVTTMASyncAMSyncHoldMCMidasCommandDataBasebd02.sil02f62l62c62i62f14g14GND1A06A05A04A03A02A01A00D7D6D5D4D3D2D1D0RRRRRRRRRRRRRRRRRRRR/WRRRS'CS'CSRCK2RESET'IRQ'PA7PA6PA5PA4PA3PA2PA1PA0TTTTTTTTPB7PB6PB5PB4PB3PB2PB1PB0TTTTTTTTmsblsbmsblsbmsblsbmsblsbMCS6532TRVCC1GND1A06A05A04A03A02A01A00D7D6D5D4D3D2D1D0RRRRRRRRRRRRRRRRRRRR/WRRRS'CS'CSRCK2RESET'IRQ'PA7PA6PA5PA4PA3PA2PA1PA0TTTTTTTTPB7PB6PB5PB4PB3PB2PB1PB0TTTTTTTTmsblsbmsblsbmsblsbmsblsbMCS6532TRVCC1GND1A06A05A04A03A02A01A00D7D6D5D4D3D2D1D0RRRRRRRRRRRRRRRRRRRR/WRRRS'CS'CSRCK2RESET'IRQ'PA7PA6PA5PA4PA3PA2PA1PA0TTTTTTTTPB7PB6PB5PB4PB3PB2PB1PB0TTTTTTTTmsblsbmsblsbmsblsbmsblsbMCS6532TRVCC1GND1A06A05A04A03A02A01A00D7D6D5D4D3D2D1D0RRRRRRRRRRRRRRRRRRRR/WRRRS'CS'CSRCK2RESET'IRQ'PA7PA6PA5PA4PA3PA2PA1PA0TTTTTTTTPB7PB6PB5PB4PB3PB2PB1PB0TTTTTTTTmsblsbmsblsbmsblsbmsblsbMCS6532TRVCC1DoradoSelAHasCPTCPI.0TCPI.1TCPI.2TCPI.3CIISel.0ISel.2TTLTrue.CTTLTrue.CTTLTrue.DTTLTrue.DTTLTrue.DISel.1DMD.00MCR/W'MCR/W'MCR/W'MCR/W'TDMuxDataCSLMCManif.3MCManif.2MCManif.1MCManif.0LampOn'.2000200224002402220022022600260288888888Trap'MidasMidasCLKGENMWantsATCBTempSenseTBaseTempSenseRCPReg.00RCPReg.04RCPReg.05RCPReg.06RCPReg.07RCPReg.08RCPReg.09RCPReg.10RCPReg.11RCPReg.12RCPReg.13RCPReg.14RCPReg.15BootNOSkipWait'(Pulled UpOn j19, p17)TSetRunRam4'Am4/29/813t;P>;;&3>;'O>;(l>;)>;*>;+>;,>;->;8>;7l>;6P>;53>;4>;2>;1>;024252;b5>;K>;M>;N4>;OQ>;Pm>;Q>;R>;S>;^Q>;]5>;\>;Z>;Y>;X>;W>;V2Y2[2b52OQ2_n2^Q2]52EP2Fm2G2H2I2J2K2M3Q3R3S3T3U3W2X5 k;PGGGr>;Gr:Gr#Gr GrGrNGNXGNXGGr0p d3t 2| ;0 0X01 ;4 ;5{ t5{ 5{ 5{5{5{5{5{;4t 1 1Pd1P1P1 r$5{ $ 1 y$1 y$ @333k3O32333ra9$r`9$rb5rar\9$r[r[C9$rY9$rW9$rV9$rU9$rT9$rS|9$rR_9$rQC9$rO 9$rL9$rK9$rJ9$rI{9$rH_9$rGB9$rF&9$rE 9$rYrX5rWrUrTrSrRrQrMrKrJrIrHrGrFmrEPr]5a9$sb5*:A$*:$*:$*:*:O*:2 @$]*:  $4; $3 $$ys ZZ [v KZ tN |^> W t\ ] ^ |U tYQ ZVaV]V\V[VZnVYQVX5VWVU|RSTUWX!Y>ZZVtS4VRVPVOVNVMVLVKm|ONMLvKZJ=I!Hu]US4Km+W+P L DrtG c $D$ C $ C$A|^> ]! 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( . & : +/:&W 3 3F2 Fk @t @t @t ! :]$!V:G3:G!VG!VGV:kFJQ FFm FA :WJQ ?&GF#G4;4;UO 4k4;O4;t  :Wu : ;tpH9GG9?W$3G+3"sG5!9"sG+9& 9G:Wu :WA A9?:Wt :u<:KFYQ9t% ruHF?$$? dG:W:W  dGG +#dGGrdGdGr'M$F#HG9"sG?GO4;M4;tK :WuI4:WFm'sR<G-JG-JtG3NGUar_.I4 "s;P( .p@tu rVk:W :!3!M!K@ttI4@tuFm @tJQ @ttEP@tuA @ttdn:ud :b5B:W$!H!I4!J!F r!3 (J(M(K VO3tO 4;ua 4;^Fk FO.PmU  UF OF 2@tF @t#l F(4;4;3:W*:pg<g?G$a<G$a<-G$:W3$89G$a< r/kFG$a<r$u.Gr9/:;t>GGGr>;Gr:Gr#Gr GrGrNGNXGNXGGrp0W 9wrp ru +887 3>;>;>>;k>; >F. . !b (^ (b Ub5 rb U^ r^ r`c 2b8b>;bDXbJtb5W_>;^DX^F^ DXZFZ FW 9]Jt$d$8d$8d$` :d$9;!Vd$` 2k5W@t3k'sGk9D kFGkDDX ? k<pd*:d/dHdBd#ddVdd drd5du :/UU r   : r3 O DX/2J2N.R(S8R8V8Z8J2"s;ZVkVk Vk r\V\\$\XrW 9W VXVXWW :XUV#kZ VZ Z Z JMKrJ$p uWWVW%:Wdb c"s_4;RTSRrRTPtS O uRRNrNI4 .H @tk@t Ip@tu srk&kskkskkVp$uk(((( y(( ]((( @;tp>%u,s,s,s  _Ph XEROXFileProjectRevDateDoradoReferenceCSLDrawingsSosinskiAmPageBaseBd17.sil7/31/79Stuffing InformationoO68 pf3.3 K.01 uf.01 uf3.3 uHe08Pg 0110 MHZSENTRYSC4516151413121110987654321iiiiiiiiiiiiiiiic07Pg 0116151413121110987654321iiiiiiiiiiiiiiiia02LM391120 K10 K5.1 K16151413121110987654321iiiiiiiiiiiiiiii16151413121110987654321iiiiiiiiiiiiiiiia2416151413121110987654321iiiiiiiiiiiiiiii680 ohm270 ohm470 ohm3.3 K680 ohm270 ohm470 ohm3.3 Kb233.3 K470 ohm270 ohm680 ohm3.3 K470 ohm270 ohm680 ohm16151413121110987654321iiiiiiiiiiiiiiiic233.3 K470 ohm270 ohm680 ohm16151413121110987654321iiiiiiiiiiiiiiiid231.0 K1.0 K1.0 K1.0 KDiodeDiodee1916151413121110987654321iiiiiiiiiiiiiiii4.7 K4.7 K4.7 K150 ohm150 ohm1.0 K10 Kh0716151413121110987654321iiiiiiiiiiiiiiiii03470 pf180 K180 K510 ohm510 ohm180 K180 K470 pf16151413121110987654321iiiiiiiiiiiiiiii0.1 uf3.9 K3.9 K0.1 uf47 ohm47 ohm16151413121110987654321iiiiiiiiiiiiiiiii04-++-22 uf22 ufCA3140AmpOPi0516151413121110987654321iiiiiiiiiiiiiiiii0715 ohm1N747A36 ohm10 K10 K16151413121110987654321iiiiiiiiiiiiiiii620 ohm390 ohm2.0 K390 ohm3.9 K3.9 K10 K3.9 Ki1816151413121110987654321iiiiiiiiiiiiiiii3.3 K0.1 ufi2316151413121110987654321iiiiiiiiiiiiiiii300 ohmj1816151413121110987654321iiiiiiiiiiiiiiii330 ohm330 ohm75 ohm10 K2.7 K1.0 K330 ohmj1916151413121110987654321iiiiiiiiiiiiiiii0.1 uf1.0 Kj2016151413121110987654321iiiiiiiiiiiiiiii100 K6.2 K620 K6.2 K120 K2.0 K100 ohmj2216151413121110987654321iiiiiiiiiiiiiiii1.5 K2N3904EBCCBE2N39041.5 Kj23d0516151413121110987654321iiiiiiiiiiiiiiiic0651 ohm330 ohm510 ohm510 ohm51 ohm3.3 K510 ohm0.1 uf1.0 K2.0 K3.0 K680 ohm2.0 K1.0 KNOTES:All diodes are HP 5082-2835 unless otherwise notedLocations b60, c60, e60, f60, b61, c61, h61, and i61 aare EPROMS and must be programmedLocation l49 must be loaded with a SIP having pins 2,4,5,&7 cut.Location k22 can use a 74151 instead of a 74lS151Pg 05Pg 06Pg 06Pg 06Pg 06Pg 06Pg 11Pg 11Pg 11Pg 11Pg 11Pg 13Pg 13Pg 13Pg 13Pg 13Pg 14Pg 14Pg 15Pg 1517iiiiiiiiiiiiiiii12345678910111213141516iiiiiiiiiiiiiiii12345678910111213141516TempSenseDiodeDiodeCG -G G G rU$u.Gr9;t>GGr>;Gr:Gr#GrGrNXGGrNXGNG Grpru 9w/:u0Wp;Hu<%:p ?WVV|t!Vew&$&3$dd&$&3$d&3$'$%:$$$dd%:$$$d$$%$#$"$dd#$"$d"$$A$!$!3$dd!$!3$d!3$"$ :$$dd :$$d$ $p#H$!&r,,0W$,s$,s$,$+$k+$k, $k+$H/:t-, GH G G G Vp V VH V V VH V    HH | 4 4     44  4 4UV$U9V$UV$UV$U:V$p +V +ZGHZ G ZGi G Vg Ve VdJ Vb V` V_J V] [[]_J`bdJeg |XXZ6 Z6 [[] ] _7_7` ` bbd7 d7pY.Ug$+b5$d g$+b5$ b5$+h$Uf<$Ud$Ub$ f<$ d$ b$Ua<$+`$d a<$+`$ `$+a$U_$+^$d _$+^$ ^$+`C$U]$+]5$d ]$+]5$ ]5$+^$g`_J]FGHF G FGU G VS VQ VPJ VN VL VKJ VI GGIKJLNPJQS |DDF6 F6 GGI I K6K6L L NNP6 P6US$+S4$d S$+S4$ S4$+T$UR<$+Q$d R<$+Q$ Q$+R$UH;$+G$d H;$+G$ G$+H$ GH GV G GpHH s   HH:|22 4: 4: 2 2 : :4242::224:4 $SX@ $Q@8e@pE-2GH2 G 2GA G V? 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