DAFBII ACDC

... Block Diagram -- LJaffy SONY Compo•ite out CXAI 14SM RGB to Compo•ite Video i~L~: I Encodu PAL/NTSC• oelect (from glue logic) ... 17.73447S Mhz Mhz Coe Ooc ...... Floppy Conn 20pin ~ ........~\:...............................................................................~,... divide ;=~~ ~'.;.:"" by 4 14.318180 SWIM -,;- t•~+i:::-1 Config ROM A[18:2] ICD2062 ~-.,~~~~~,,.•,3~''''''''''~'~ Clock Gen Flash 128K x 8 PBDuoPDS 152 in Romcs...,rd*,wrt' MA[31:24] & A[23:0] ECL Pixe!Clks MuxPD[31:0] RGBout AC842 RAMDAC Pix Data Muxes Bank_se~ load• Buss Transceivers 68030 D[31:0] Qty 2 74FCT16245• Qty 8 74FCT399s (68030 DSACKa•, TS•, newa.iz, PAL/NTSC•oek<:t, ROMca•,acsird•,scsiwr•, A[31:0] Audio channel TDA1308 Audio from Duo Amp BD[31:0] rdn 7 /15/93 ' /' REV. ZONE APPD DATE""' PRODUCTfON RELEASE A ' REVISION ECN# .- ) NOT~: MANUFACTIJRERS RECEIVING APPLE APPROVED VENDOR STATUS FOR THEIR PRODUCT UNDER THIS PART NUMBER PLEASE NOTE: You must not change your part design, materials or manufacturing process from those used for the original samples submitted to and approved by Apple without written approval of Apple. Proposed changes determined by Apple to be significant, will require the manufacturer to submit new samples and/or d-:::ta for review and approval prior to product ~hipments to Apple. (Refer to burn-in specification 344$0128) r ti® Apple Computer, Inc. METRIC DIMENSIONS ARE IN MllilMEICRS. DIMENSIONS IN BRACXETS ( I ARE IN INOffiS. TOLERANCES x.x ± J.3 [.01] X.XX± 0.13 [.005) X.YXX ± O.Q3 [.001} (0 B.T. NOTICEOFPROPRIETARYPROPERTY ------+MFG--'APl'D..__..._.....,..... (I) TO MA!NfAIN TillS D00JMENT IN CONFIDENCE ENm:'G APl'D \ /,; , / // (II) NOTTO REPRODUCE OR COPY IT I\ I (Ill) NOT TO REVEAL OR PUBLISH IT IN WHOU! OR PART "l (IV) AILRIGHTSRBSERVED i..; TITLE DESIGNER // RELEASE // // ' IC, ASIC, CMOS, OAFS II, (Direct Access Frame Buffer Controller II), SCALE: ANGLEs± O_.I_ _ DO NOT SCALE DRAWING }Q 7'4(.1 y::} J.-1, . '2'. L., lHEINFORMATIONCONTAINEDHEREINISlHEPROPRIETARYPROPERlY t / ~ ;:J / '.JJ.. OF APPLE COMPIJIBR, INC. 1ltE POSSESSOR AGREES TO TIIE RX.LOWING: QAAPPD or as noted DBSIGNCK J NONE MATERIALJFINISH Sl2li NOTED AS APPLICABLE A 160-PIN PQFP ORA WING NUMBER 34380128-A 1.0 SCOPE: This specifies the parametric requirements for the DAFB II ("Direct Access Frame Buffer Controller II") LC., which is designed to control a video frame buffer and interface it to a 68040 system bus. The part was originally designed using the VTI VGT300-046 gate array, a 1µ CMOS process. This device is packaged in a 160-pin PQFP. 2ffiffl~IB~~~~~g~~~~~~~~~~~~~~~~~~Mg~re~~~~~~N ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VAO VA1 vss VA2 VSSI VA3 VA4 VA5 VDD VA6 VA? VAf3 vss RESET VDDI Rm VSSI TT1 TS SIZEO SIZE1 l~ A29 A28··· VSSI A27 A26 VDDI A25 A24 vss TBI TA TEA VDD XCVREN VAN/ BOO 801 SCLK1 SCLKO VDD LO SYNCACTIVE 120 119 118 117 116 115 114…