RTRTRTRT2901U.15OC'SCKSMicroinstruction:98442901 ctlA & BNextF1F2Alto comparisonRBSLR, LTF2Next53241032ChipsTPCs, controlS, UMisc logicF decodingParity46342DiskEthernetDisplay10EN'SIb4Ib3Ib2Ib1Stack for Mesa1CinTimingGP-CinCin-YStkp44AluFRTRTMK64MK64RT64k RAMsY.15X controlH13Ib7AB-Y82550(IDM 2901A-1)F1.315040RAMStorage (2 cy)PC stuffShift endsuInstructionProm4S374BDRRTQCKRRSBY.04-07YH.0-3More registersH.04-07'clk'MapRefbits 4-7only2.51.5MIR (12 b fast)Mem addr1+Main data pathsEX'EY'SX0X1X2X3Y0Y1Y2Y3OXOYRRRRRRRRRRTTSS2S1GNDPC.16GNDPC.16doubleQ0F15"Q3""F0""F0"F15Q0"Q3"nclk'OC'SCKSTABRRTABRRQ15F0F0Q15"F3""F3""Q0""Q0"don't forgetpullups0123shiftPC.16double cycledouble shiftPageDateRevDesignerProjectFileXEROXDrawingPARCWildflowerLampson01wf01.silX.15S374Also goesto MarrightleftW2901, 182213545RTH.15MemIn.15MemIn.31MemIn.31MemIn.23MemIn.15MemIn.07S.15F93422pclkSU_SRRRRSRRRRSSCE1'CE2WE'OE'A0A1A2A3A4A5A6A7nnWrSU'F93422BDRRTQETRRDHBDRRTQCKRRSBCKRRSBCOCITRY.15Stkp.3dF1.3SUad.7clk'Stkp_PushPopdEnS'clk'LS283LS283SUad.7SUad.6SUad.5SUad.4CinSUad.1SUad.01225S09 SB 35AB-arithAB-GPX-arith3030X-GP35AB-logicSU setSU-logic40X-clk^X-clk^38Y lcy 84040A-YS253X-clk^X-logicMIR-X32D-Y35SU setup86210En U,S,WSU_ (could be F)1141CycleCycleLoad.0Load.1'Load.1Shift endsand IoOutEnSby oring some-ting with EnSwe can get 32 more U regsper task.addressiRRTBAiRRTBApCt.0pCt.1SUad.0SUad.1Cin-clk^Bits0-3RTRTS374S374clk'clk'BDRRTQRRRRX0X1X2X3OXTSBRRE'EY'EX'SRRS2S1SS253S257MemIn.15MemIn.31S257BDRRTQIoIn.15Y lcy 8Stkp.3Ib.3S253S253S257iRTHGS24112-150-150-15Small constantiRTHGX.118-11???12-158-11S257SBRRE'optionally 2 more RAMsY.07F1.2F1.3iRRTBAF1=-1xxRBATRRiEnWF1.0F1.1F1.3F1=1-0xF1=1-1-F1.0EnWRBATRRiF1.2OC'SCKSOC'SCKSOC'SCKSEnSC'EnW2'EnW1'iRRTBApclkIb__Ib1'_Ib2'_Ib3'clk'dF1.1dEnWiRRTBAEnW3'RTMemOdd257RTIb.7LS373LS373LS373LS373clk'_Ib4'LS373LS373LS373LS373Bits 0-7OC'SCKSEn'clk'LoadIb'Ib.3EN'SF1=-111S241S241bits 8-11_IbonlyBARRRRTiEnWF1.2F1.3F1.1Note: all SSIon this pageis included inSU, W andshift countsFFsLoadIb'CycleStkp_PushPopMapRefIb_14-[4][4][2][1][.5][4][4][1.5][1][34][1.5][1][2][1]55S399S399S399S399S377S377LS399LS399S09S09S00S00S00S00S00S20S10S10S2418810319972310pEmuU'S388Y for writing SU fromslow X sources. Costs2 chips.pEmuU'Misc:MemOdd_Ibx0RAS (Ph0)1985fS74 MIR93ffEnU'ffEnu-SUdis5fS74 MIR90Y at 894ffS388935fS74 MIR95Could connect X toParity is computed here. Watch Mem_ timing**1*1***=reg. 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1-6MemAd.0aMemAd.0bRTX.15ETRRDHCOCITRnA3A2A1A0CS'SRRRRSWE'Cout.RTA.0A.1A.2A.3nnEN'SiGHiTRiGHiTRWEeven'RTRTRRBATRRBATH.15'H.15S240S283S374S283MapRefDataRefpCASWEodd'Memory addressing0001020304050607080910111215141312111009080706050403020100odd/evenRow addressYH/HHY/HCol addressWord in pageodd/evenRow addressData, 128kMap, 128kYH.3HH.324 bits of VA instead of 20costs 2.5 chipsOC'SCKSclk'nS374only for bit 3Bits 0-3[1][1]need PD + setup < 35YH.3HH.3S240NOT clk'clk'clk'S112iRRTBA12300321Col adAll drivers arealways onProblem: Cout is badon logic operationHow about stopping RAS tounselected bank? Saves power.HH.3YH.3DataRefMapRefY.07S240iGHiTRiGHiTRiGHiTRS240S240S240S240S240S240S240S240S240S240iGHiTRiGHiTRiGHiTRS240MapRefDataRefDataRefMapRefiGHiTRiGHiTRiGHiTRY.06Y.06Y.14Y.14H.06'H.06'EN'SS240EN'SS240S240EN'SS240EN'SiRRTBAiRRTBAEN'SS240EN'SS240MapRef'MapRefpPh0pPh0Ph1but MemAd retains RAbecause the load isRA driver is on in Ph0.It turns off at 0 of Ph1which produces CA on MemAdTwo drivers per RAM inputline, driving 16 or 17chiips each.CA setup time is -10.S00S00S00phclkCA driver turns on at 25,by 40. This is fine becauseiRRTBAiRRTBAiRRTBAiRRTBApPh0'pPh0'MemBank0RAS'aRAS'cRAS'dRAS'bMemBank0probably be from Y.14 toavoid serious timing problems.Bank select for 256k shouldS37S37S37S37[1]Ph0Ph2[33-233]S240S240S240S240pCASCAS'bCAS'aiGHiTRiGHiTR[41-241][0-200]hclk'falls at 25[1]S240[126-226][119-219][1]RH.3iRRTBAFFsMapRefRH_RH_pclkNeed MemOdd in Ph22970129701Should clock this with fclkso that A can change.almost purely capacitiveMem_S374S374Mem_[7]wf03.sil38/18/78îïŽþNŸGîïþNXGîïÕþGrîNXïŽþG¹î«ïÕþGrî äïÕþGrî#�ïÕþGrîGïÕþGrîG­xïðî>Éïðî;tïðî/:ïðî9ïðî$ïðîpïUðîrxïðî9ï‡ðî.¬ïÕþGrî:åïÕþGrî>;ïÕþGrî9pïòð 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–$î�tï&3ðî�ï(%þ@$î«ï&zþ]$î«ï"þ]$î«ï&Áðî«ï"Oð î«xï%ð î«ï#úð î�tï"Þðîï"–þ$]îï$Ïþ«$îÈï%^þ$îï%¥ðî ï#úðîï#lðî%ÈpïòðîIæïòðÿøäŽPiJÅPageDateRevDesignerProjectFileXEROXDrawingPARCWildflowerLampsonControlBDRRTQRTB1STTTH3H2H1H0B3B2B0RRRRRSRTLD'TCL'EPETCOSCKI PromS1S2S4STRRRE'RRRRRRRRD0D1D2D3D4D5D6D7YTW'F2.1F2.2F2.3F2.0Ph1'nclk'RTRTLS374RTHGLS163RTHGLS374RTRTRTRTLS374RTHGRTHGLS374RTRTNt.0Nt.1Nt.2pCt.0pCt.1pCt.2pCt=EmuLS374LS374LS374LS374HiOC'SCKSEN'SPh1Clk'nLS374LS241LS241B1STTTH3H2H1H0B3B2B0RRRRRSRTLD'TCL'EPETCOSCKS'R'RTTRSQQQ'DCRBATRRiqclkRHiOscillator40 Mhz[3]uInstructionAddressingTasksClocknS163ppPh2ppPh1ppclkpphclkPh1S74qclkRS10ClickNo.0ResettingnRTclk'TCS'SRRRRRRRRTTTQ0Q1Q2Q3SA0A1A2A3A4A5A6A7CS'256x4 PromPh0Ph2Ph1lastnextcurPh1Ph1'RTHGRTRTS399RTRTNia.11AM701S374LS170OCiRRTBAOCX.15F=0F=0?[1][2][.5][1][1]R: Ph2W: Ph0R: Ph1W: Ph2clk'clk'S374SRRSRE'W0W1RRR0R1WE'EN'SA3A2A1A0CS'SRRRRSWE'CKRRSBpRet1'pRet2'pCall1'pCall2'clk'GoodNINt.0Nt.1Nt.2Nt=EmuNt=EmuS399pRet'LS170Ph1Ph2Ph0Ph0Ph2Ph1curcurnextlastTPCnextlastnextcurNt=EmuNt.2Nt.1Nt.0A3A2A1A0CS'SRRRRSWE'AM701curlastPh2Clk'clk'170AM701S374Tdisp ioS374TPC in12131.5XdispLinkS3991Ib dispUReqKReqEReqDReqReqs areby clk', notdeviceclocksDuring reset, tasks arescheduled: Emu, Emu, 2,3,4,5,6,7. Togetherwith pCt=Emu as a BC, thisallows initialization.RTBARRSw'Ct.01 are the Ubank address.0-1.The emulator uses 00, so task#s 0 and 1 can'tbe used (unlessthey want toshare U regswith the emu.iGHiTRLS240S151iRiTRRCDiiRRTBASwDly'S03S10[.5][3]Ib.7clk'S374RTPUPUPUS03iRRTBAS03F=0?F=0TPC.0-11'Fdisp.10-11'Tdisp.8-11'Link.8-11'Xdisp.8-11'Fdisp.10-11'Sdisp.10-11'EN'SXdisp4'LS240LS240LS240PUnPh0Clk'RRBATPh1ResettingLS08Sw'[4]45356ReqNt PromTPC RAMNia setup35121!!!151.5240S03Tdisp1S031Disp buf1Fdisp1Tdisp buf240Sdisp[1][1][.5][1.5][1.2]116 pullups.7S10.5S00Disp.10-11Disp.8-9need SwDly' tooFFsBranchesXdisp4'pCall1/2'pRet1/2'pRetInia.0-11'IbDisp.4-11'LS03iRRTBASwDlyRTAM701Replace all thiswith 1 29903?Then RW is like TPCAM701Saves 1 canAM701S03Note: Fdisp is Y test from U or MemInGetting rid of them saves 1 can. 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äŽNŸiJ·PageDateRevDesignerProjectFileXEROXDrawingPARCWildflowerLampson8/18/78DisplaySLQHSSCKSIABCDEFGHTRRRRRRRRRRCE'SCL'MemIn.10MemIn.12MemIn.14Memin.00Memin.02Memin.04Memin.06Memin.08MeinIn.01MemiIn.03MemIn.05MemIn.07MemIn.09MemIn.11MemIn.13MemIn.15LS166hclk'Display_clkRRBATLdDispHiBDRRTQSBRRE'B1STTTH3H2H1H0B3B2B0RRRRRSRTLD'TCL'EPETCOSCKS2CKS1LIRIRRRH3H2H1H0D3D2D1D0RSRRRRTTTTSCL'LdDispBDRRTQVideonHihclk'Hi...S194S157S157S157UseDAuxUseDAuxDisplay_'clk'HiY.11Y.12HiHiWorry about timing of qclk.Are setup and hold times met?qclk40 MHzdataABC084001011ClickY.11-12Bits in DAuxat 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øPageDateRevDesignerProjectFileXEROXDrawingPARCWildflowerLampsonLS299LS374LS374SL'SR'SLISRISG2'G1'SRRQ7Q0TTDQ7DQ6DQ5DQ4DQ3DQ2DQ1DQ0CKTTTTRRRRTTTTCL'OC'CKSQ3Q2Q1Q0TTTTD0RRRRRRRRD1D2D3STTTTD4D5D6D7Q4Q5Q6Q7OC'CKSQ3Q2Q1Q0TTTTD0RRRRRRRRD1D2D3STTTTD4D5D6D7Q4Q5Q6Q7KDataInKBitClk'.HinabbaGHiRRRRTToaesiRTiABGHRRRcseHippKDataOut-KDataOut+KDataOutHippKdataIn-KdataIn+N75110N75107B1STTTH3H2H1H0B3B2B0RRRRRSRTLD'TCL'EPETCOSCKLS163KBitClk'iRRTBApclkKData_nHi..._KData'OC'CKSQ3Q2Q1Q0TTTTD0RRRRRRRRD1D2D3STTTTD4D5D6D7Q4Q5Q6Q7LS374Don't forget 220/330 terminatorsfor single-ended lines from diskppppppiRRTBAK'CJQ'QR'S'QTTSRRRRTclk'clk'pclkTrack00'WriteFault'SeekComplete'SectorMark'IndexMark'Ready'SectorMark'iRRTBAIoIn.10IoIn.11IoIn.12IoIn.13IoIn.14IoIn.15IoIn.08IoIn.09IoIn.09IoIn.08IoIn.15IoIn.14IoIn.13IoIn.12IoIn.11IoIn.10H.15'H.14'H.13'H.12'H.11'H.10'H.09'H.08'Ready'OKtoRunpniRRTBAnHeadSel.3'pclkOC'CKSQ3Q2Q1Q0TTTTD0RRRRRRRRD1D2D3STTTTD4D5D6D7Q4Q5Q6Q7pppppppppReadGate'WriteGate'HeadSel.2'HeadSel.1'HeadSel.0'Step'DirSel'DriveSel1'abbaGHiRRRRTToaesiRTiABGHRRRcseppKWriteClk+KWriteClk-HippHiPLOclk-PLOclk+KBitClk'phasing may be wrongN75110N751070001. . .1000KNextBytecheck polarities,directions etcfor 299Note: input signalvalues at the timeof a request are frozenuntil the processor hasa chance to look at themCan we find denser line driversand receivers?Data fromprocessorData toprocessorDisk controllerTo initializeKData_0FltClr/Kinit_1after <=8 KbitClks thecounter will lock up at 1001FltClr/Kinit_0BAiiRRTCDiRRTPerhaps we should be countingbytes for sector marks ourselves?That would cost about 2 cansNow the counter will stayat 1001 until a 1 appears in the SR. On the nextclock it will go to 1, asthe first data bit entersthe SR.Initialization is not requiredon writingRRBATKNextByteLoadSRCounts:Still need OKtoRun circuit toprevent writing during power-up.CanLoadKSRiGHRTCanLoadKSRCanLoadKSRCanLoadKSRCanLoadKSR_1CanLoadKSR_0Data+ terminators+ OKtoRunto sync_Kstuff'iCDRRTiCDiRRTKNextByte..ClocksControlLocks upat 1001waitingto synchwith inputPAL: 2 ->1LS377KCtl_'PAL: 2.5 ->1FFsKData__KData'_KStatus'KCtl_rKReq'rKReq'KReqwf08.sil8KinitKOddByteRTBARRKoddByte'WantKByteReqiTRRiiBAKReset'OC'CKSQ3Q2Q1Q0TTTTD0RRRRRRRRD1D2D3STTTTD4D5D6D7Q4Q5Q6Q7Y.07Y.08Y.09Y.10Y.11Y.12Y.13Y.14Y.15Y.04Y.05ClrWrFaultY.06KinitKreset'WantKByteReq'LS377EN'EN'KCtl_'pclkabout 12 cans8/18/78îïŽþNŸGîïþNXGîïÕþGrîNXïŽþG¹î«ïÕþGrî äïÕþGrî#�ïÕþGrîGïÕþGrîG­xïðî>Éïðî;tïðî/:ïðî9ïðî$ïðîpïUðîrxïðî9ï‡ðî.¬ïÕþGrî:åïÕþGrî>;ïÕþGrî9pïòð î0åïòðî�ïF&þë$î&åïT˜þV$î&åïUµþV$î�ïGBþë$î�ïH_þë$î&åïVÑþV$î&åïWíþV$î�ïI{þë$î�ïJ˜þë$î&åïY 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chip11LSLSLSLSLS54-bit up-down ctr4-bit counter74S16342348Parts ListwfParts.sil7/10/78Parts list for 128k machine with display, disk and ethernet controllersSince the design is not complete, it might be prudent to allow for 10 additionalMSI parts (e.g. 74S374 or 74S258) and 10 additional SSI parts.îïŽþNŸGîïþNXGîïÕþGrîNXïŽþG¹î«ïÕþGrî äïÕþGrî#�ïÕþGrîGïÕþGrîG­xïðî>Éïðî;tïðî/:ïðî9ïðî$ïðîpïUðîrxïðî9ï‡ðî.¬ïÕþGrî:åïÕþGrî>;ïÕþGrî«pïòð î0åïòðîtï^Qð îï]5ð îrïXÃðîrïTQðîrïS4ðîrïRð îrïJQðîäï4‚þ$/Éîäïd'þ8$îäï4‚þ$/Éîäï4‚þ$/ÉîVpïbðî�ïbðîtï`Šðî!åï`Šðî'sï`Šðî+Wï`Šðî.¬ï`Šðî3¬ï`Šðî!Vï4‚þ$-�î%Èï4‚þ$-�î*:ï4‚þ$-�î.¬ï4‚þ$-�î3ï4‚þ$-�î<ï4‚þ$/ÉîïXÃðîïTQð îïS4ð îïRð îïJQð îïZüð îrïB‰ðîïB‰ðîïAmðî�ïXÃðîrïW¦ðîïW¦ðî�ïW¦ðî�ïJQðîïB‰ðî�ïZüðî�ïRðî�ïS4ðî�ïAmðîrïAmðîrï>ðîï>ðî�ï>ðîrï;Þðîï;Þð î�ï;Þðîrï8‰ðî�ïEßðîäïUµþ8$îäïK´þ8$îäïGBþ8$îäïCíþ8$îäï?{þ8$îäï=Bþ8$îäï9íþ8$îäï7´þ8$îäïZ&þ8$îäïaîþ$î&Wpïb ðîäï_‘þ8GîrtïPûðî(ïPûðî(ïTQðî'sï8‰ðîrïOßðîïOßðîïPûðî5WïOßðîrïNÃðîïNÃðî5WïNÃðîrïEßðî5WïDÂðî5WïTQðî5Wï8‰ðîïHð î8ï`Šðî7�ï4‚þ$/Éî9;ïHðîrïVŠðîïVŠð î9ÉïVŠðîrïI4ðîïI4ðî9ÉïI4ðîrïM¦ðîïM¦ð î9ÉïM¦ðî9Éï>ðî9ÉïS4ðî9Éï8‰ðîrï:Âðîï:Âð î9Éï:Âðîï\ð î#�ï\ðî#�ïDÂðîï6Pðî#�ï6Pðîäï4^þ8$î#�ïI4ðî#ï^Qðî#�ïS4ðî#�ïRðî#�ï>ðîrï@Pðîï@Pðî#�ïTQðîrïLŠðîïLŠðî#�ïLŠðî,sïPûðî0åïPûðî,sïTQðî,sïDÂðî0åïDÂðî,sï8‰ðî0åï]5ðîrï53ðîï53ðî0åï53ðî0åïAmðî2ïAmðî2ïDÂðî6tïDÂðî-�ïPûðî2ïPûðî0åïS4ðîïEßðîïDÂð îrïDÂðî0åï8‰ðî#�ïB‰ðî#�ï@Pðî#�ï8‰ðî�ï8‰ðî«pïòð î%Èïòð î?Wïòðîï+žðGîï(HðPîï&žð>·äŽNŸc¼è HELVETICA  HELVETICA HELVETICA GATES  O±) ¾5JJC\žlž�l˜ ¦;«j/® ¬ÿÿ’lÿÿÿÿÿÿ) ¾5JJC\žlž�l˜ ¦;«wf01.sil etc.€0)ŒPÀŽD@< ™ôœà”  Lampson21-Aug-78 12:11:40