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|| FILE: #0052.PLD|| PROJ: 20120601|| PART: G26CV12-#0052|||| DEV : GAL26CV12|||| DESC: DECODER I/O||||GAL26CV12||| INPUT| 1:A8, 2:A9, 3:A10, 4:A11, 5:A12, 6:A13, 8:A14, 9:A15, 10:A16,| 11:A17, 12:A18, 13:A19, 14:A20, 15:A21, 16:A22, 17:A23, 18:VMA,| 27:X0E, 28:X1E,|| OUTPUT| 19:CS1, 20:CS2, 22:CS3, 23:CX0, 24:CX1, 25:IO0, 26:IO1|| ACTIVE-LOW: CS1, CS2, CS3, CX0, CX1, IO0, IO1||| SIGNATURE: "0052 "||| --------------------------------------------------------|| /IO0 -> BANCO 0 - AREA 00FC00 - 00FCFF|| /IO1 -> BANCO 0 - AREA 00FD00 - 00FDFF|| /CX0 -> BANCO 1 - AREA 010000 - 011FFF SE X0E = 1 (8K)|| /CX1 -> BANCO 1 - AREA 012000 - 013FFF SE X1E = 1 (8K)|| /CS1 -> BANCO 2 & 3 - AREA 020000 - 03FFFF (128K)|| /CS2 -> BANCO 4 & 5 - AREA 040000 - 05FFFF (128K)|| /CS3 -> BANCO 6 & 7 - AREA 060000 - 07FFFF (128K)|||| --------------------------------------------------------||| BANK0 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16' & VMA')| BANK1 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16 & VMA')|| --------------------------------------------------------|||| IOS -> 00FC00 - 00FDFF| IOS = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10 & A9')|| /IO0 -> AREA 00FC00 - 00FCFF| IO0 = (IOS & A8')|| /IO1 -> AREA 00FD00 - 00FDFF| IO1 = (IOS & A8)|||| --------------------------------------------------------|||| /CS1 -> BANCO 2 & 3 - AREA 020000 - 03FFFF (128K)| CS1 = (A23' & A22' & A21' & A20' & A19' & A18' & A17 & VMA')|| /CS2 -> BANCO 4 & 5 - AREA 040000 - 05FFFF (128K)| CS2 = (A23' & A22' & A21' & A20' & A19' & A18 & A17' & VMA')|| /CS3 -> BANCO 6 & 7 - AREA 060000 - 07FFFF (128K)| CS3 = (A23' & A22' & A21' & A20' & A19' & A18 & A17 & VMA')|||| --------------------------------------------------------|||| /CX0 -> BANCO 1 - AREA 010000 - 011FFF SE X0E = 1 (8K)| CX0 = (BANK1 & X0E & A15' & A14' & A13')|| /CX1 -> BANCO 1 - AREA 012000 - 013FFF SE X1E = 1 (8K)| CX1 = (BANK1 & X1E & A15' & A14' & A13)