=========================== 68000 bus line assignment As of: 10/5/1985 =========================== Line Use Line Use Line Use Line Use ==== ========== ==== ========== ==== ========== ==== ========== 1 V(unreg) 26 51 V(unreg) 76 BR/BW- 2 BA1 27 52 BA2 77 BUDS- 3 BA3 28 53 BA4 78 BLDS- 4 BA5 29 GND 54 BA6 79 GND 5 BA7 30 BCLK- 55 BA8 80 BCLK 6 BA9 31 GND 56 BA10 81 GND 7 BA11 32 IACK1- 57 BA12 82 INT1- 8 BA13 33 IACK2- 58 BA14 83 INT2- 9 BA15 34 IACK3- 59 BA16 84 INT3- 10 BA17 35 IACK4- 60 BA18 85 INT4- 11 BA19 36 IACK5- 61 BA20 86 INT5- 12 BA21 37 IACK6- 62 BA22 87 INT6- 13 BA23 38 IACK7- 63 88 INT7- 14 BD15 39 64 BD14 89 15 BD13 40 65 BD12 90 VPA- 16 BD11 41 66 BD10 91 17 BD9 42 67 BD8 92 BERR- 18 BD7 43 68 BD6 93 19 BD5 44 69 BD4 94 DTACK- 20 BD3 45 70 BD2 95 21 BD1 46 71 BD0 96 RESET- 22 GND 47 72 GND 97 23 48 73 BE 98 24 +12V 49 74 BVMA- 99 25 -12V 50 GND 75 BAS- 100 GND price list for 68000 project POWER SUPPLY =========================================================================== Part description qty price per total =========================================================================== STANCOR 12.6v c.t. 4A transformer 1 18.87 18.97 10,000 uF 16V filter capacitor 2 7.80 15.60 50V, 12A diodes 2 1.79 3.58 line cord 1 1.69 1.69 Vector board 1 2.50 2.50 1000uF 35V filter capacitor 2 1.59 3.18 4 lug screw connector 1 1.49 1.49 other (bleeder resistors, hardware) 3.00 -------------------------------------- ------- TOTAL 50.01 COMPUTER =========================================================================== Part description qty price per total =========================================================================== S100 backplane 1 37.65 37.65 S100 card 2 21.80 43.60 wirewrap labels 15 1.95 29.25 wirewrap wire 2 4.00 8.00 S100 connectors 3 9.60 28.80 voltage regulator 3 1.25 3.75 68000 processor 1 28.75 28.75 68681 DUART 1 11.52 11.52 68230 PIT 1 14.20 14.20 wirewrap sockets 60 .55 33.00 SSI and MSI chips 30 .35 10.50 64K DRAM 20 .66 13.20 deglitching capacitors (.1 uf) 60 .05 3.00 other 15.00 -------------------------------------- ------- TOTAL 280.22 Also, the ADAM serial keyboard cost $20.