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OrCAD LOGIC COMPILER  v2.01 N 12/09/94  (Source file .\PLD\#0202.PLD)
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  1  ||	FILE:	#0202.PLD
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  2  ||	PROJ:	20120601
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  3  ||	PART:	G26CV12-#0202
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  4  ||
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  5  ||	DEV :	GAL26CV12
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  6  ||
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  7  || 	DESC:	DECODER I/O
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  8  ||
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  9  |
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 10  |GAL26CV12
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 11  |
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 12  || INPUT
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 13  |  1:A8, 2:A9, 3:A10, 4:A11, 5:A12, 6:A13, 8:A14, 9:A15, 10:A16,
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 14  | 11:A17, 12:A18, 13:A19, 14:A20, 15:A21, 16:A22, 17:A23,
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 15  | 27:VMA, 28:A7, 26:VDA,
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 16  || OUTPUT
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 17  |  18:ME0, 19:ME1, 20:DBE, 22:DBX, 23:IO0, 24:IO1, 25:IO2
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 18  |
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 19  | ACTIVE-LOW: ME0, ME1, DBE, DBX, IO0, IO1, IO2
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 20  |
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 21  |
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 22  | SIGNATURE: "0202   "
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 23  |
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 24  || --------------------------------------------------------
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 25  ||
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 26  || /IO0 -> 00FC00 - 00FC7F
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 27  || /IO1 -> 00FC80 - 00FCFF
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 28  || /IO2 -> 00FD00 - 00FDFF
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 29  || /ME0 -> 100000 - EFFFFF (RAM)
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 30  || /ME1 -> 010000 - 013FFF (RAM 16K)
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 31  || /DBE -> internal data bus enable
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 32  || /DBX -> external data bus enable
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 33  ||
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 34  || --------------------------------------------------------
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 35  ||
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 36  |  BANK0 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16' & VMA')
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 37  |  BANK1 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16  & VMA')
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 38  || --------------------------------------------------------
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 39  ||
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 40  || IOS -> 00FC00 - 00FDFF
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 41  |  IOS  = (BANK0 & A15 & A14 & A13 & A12 & A11 & A10 & A9' & VDA)
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 42  |  IO0A = (IOS & A8' & A7')
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 43  |  IO1A = (IOS & A8' & A7 )
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 44  |  IO2A = (IOS & A8)
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 45  |  IO0 = IO0A
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 46  |  IO1 = IO1A
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 47  |  IO2 = IO2A
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 48  |  CS1A = (A23' & A22' & A21' & A20' & A19 & VMA')
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 49  |  CSHA = (A23 & A22 & A21 & A20 & A19 & VMA')
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 50  || BANK $01 : $010000 - $01FFFF
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 51  || BANK1 = (A23' & A22' & A21' & A20' & A19' & A18' & A17' & A16  & VMA')
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 52  |  ME1A  = (BANK1 & A15' & A14')
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 53  |  ME1 = ME1A
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 54  ||
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 55  || --------------------------------------------------------
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 58  || $100000 - $1FFFFF (1Mb)
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 59  |  BLK1 = (A23' & A22' & A21' & A20 & VMA')
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 60  || $200000 - $3FFFFF (2Mb)
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 61  |  BLK2 = (A23' & A22' & A21 & VMA')
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 62  || $400000 - $7FFFFF (4Mb)
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 63  |  BLK3 = (A23' & A22  & VMA')
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 64  || $800000 - $BFFFFF (4Mb)
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 65  |  BLK4 = (A23  & A22' & VMA')
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 66  || $C00000 - $DFFFFF (2Mb)
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 67  |  BLK5 = (A23  & A22  & A21' & VMA')
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 68  || $E00000 - $EFFFFF (1Mb)
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 69  |  BLK6 = (A23  & A22  & A21  & A20' & VMA')
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 70  |  ME0A = (BLK1 # BLK2 # BLK3 # BLK4 # BLK5 # BLK6)
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 71  |  ME0 = ME0A
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 72  ||
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 73  || --------------------------------------------------------
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 74  || INTERNAL DATA BUS ENABLE
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 75  || FIRST 16 BANKS OF RAM (1Mb), BUT NOT CX1, AND LAST 16 BANKS
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 76  || PLUS IO0
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 77  ||
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 78  || 16K BLOCK $014000 - $017FFF
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 79  |  BR1 = (BANK1 & A15' & A14)
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 80  || 32K BLOCK $018000 - $01FFFF
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 81  |  BR2 = (BANK1 & A15)
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 82  ||
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 83  || BANK $01 RAM SELECT
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 84  |  CS0B = (BR1 # BR2)
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 85  ||
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 86  || BANK $02 & $03 : $020000 - $03FFFF (128K BLOK)
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 87  |  CS0C = (A23' & A22' & A21' & A20' & A19' & A18' & A17  & VMA')
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 88  ||
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 89  || BANK $03 - $07 : $040000 - $07FFFF (256K BLOK)
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 90  |  CS0D = (A23' & A22' & A21' & A20' & A19' & A18 & VMA')
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 91  ||
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 92  || BANK $00 - $07 RAM SELECTION (512K BLOCK)
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 93  |  CS0A = (BANK0 # CS0B # CS0C # CS0D)
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 94  || BANKF0: $F00000 - $F7FFFF
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 95  |  BANKF0 = (A23 & A22 & A21 & A20 & A19' & VMA')
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 96  | DBE = (CS0A # CS1A # BANKF0 # CSHA # IO0A)
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 97  ||
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 98  || EXTERNAL DATA BUS ENABLE
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 99  ||
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100  |  DBX = (ME0A # ME1A # IO1A # IO2A)
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I202  1/29/18  8:26 pm  (Monday)
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OrCAD DEVICE FITTER  v2.01   12/09/94  (Source file .\PLD\#0202.PLA)
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RESOLVED EXPRESSIONS (Reduction 0)
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121
                       A19' A20' A21' A22' A23' VMA' A7' VDA
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DBE               62   A8' A9' A10  A11  A12  A13  A14  A15  A16' A17' A18'
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                  63   A14  A15' A16  A17' A18' A19' A20' A21' A22' A23' VMA'
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                  64   A15  A16  A17' A18' A19' A20' A21' A22' A23' VMA'
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                  66   A17  A18' A19' A20' A21' A22' A23' VMA'
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                  67   A18  A19' A20' A21' A22' A23' VMA'
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                  68   A19' A20  A21  A22  A23  VMA'
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                  69   A19  A20' A21' A22' A23' VMA'
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                  70   A19  A20  A21  A22  A23  VMA'
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IO1               29   A8' A9' A10  A11  A12  A13  A14  A15  A16' A17' A18'
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                       A19' A20' A21' A22' A23' VMA' A7  VDA
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DBX               49   A8' A9' A10  A11  A12  A13  A14  A15  A16' A17' A18'
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                  50   A8  A9' A10  A11  A12  A13  A14  A15  A16' A17' A18'
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                       A19' A20' A21' A22' A23' VMA' VDA
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                  52   A20' A21  A22  A23  VMA'
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                  53   A20  A21' A22' A23' VMA'
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                  54   A21' A22  A23  VMA'
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                  55   A21  A22' A23' VMA'
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                  56   A22' A23  VMA'
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                  57   A22  A23' VMA'
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IO2               20   A8  A9' A10  A11  A12  A13  A14  A15  A16' A17' A18'
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                       A19' A20' A21' A22' A23' VMA' VDA
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ME1               75   A14' A15' A16  A17' A18' A19' A20' A21' A22' A23' VMA'
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ME0               86   A20' A21  A22  A23  VMA'
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                  87   A20  A21' A22' A23' VMA'
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                  89   A21  A22' A23' VMA'
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                  91   A22  A23' VMA'
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SIGNAL ASSIGNMENT
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                                      Rows
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  2.     A9              4        -    -    -        High
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  3.     A10             8        -    -    -        High
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  4.     A11            12        -    -    -        High
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  5.     A12            16        -    -    -        High
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  8.     A14            24        -    -    -        High
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  9.     A15            28        -    -    -        High
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 10.     A16            32        -    -    -        High
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 11.     A17            36        -    -    -        High
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 12.     A18            40        -    -    -        High
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 13.     A19            44        -    -    -        High
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 14.     A20            48        -    -    -        High
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 15.     A21            50      112    9    0        High    (Registered)
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 16.     A22            46      103    9    0        High    (Registered)
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 17.     A23            42       94    9    0        High    (Registered)
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 18.     ME0            39       85    9    6        Low     (Three-state)
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 19.     ME1            35       74   11    1        Low     (Three-state)
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 20.     DBE            31       61   13    9        Low     (Three-state)
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 22.     DBX            27       48   13    9        Low     (Three-state)
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 23.     IO0            23       37   11    1        Low     (Three-state)
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 24.     IO1            19       28    9    1        Low     (Three-state)
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 25.     IO2            15       19    9    1        Low     (Three-state)
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 26.     VDA            10       10    9    0        High    (Registered)
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 27.     VMA             6        1    9    0        High    (Registered)
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 28.     A7              2        -    -    -        High
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 29.     -               -        0    1    0
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 30.     -               -      121    1    0
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                                    ---- ----
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                                     122   28  (23%)
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I200  No fatal errors found in source code (device phase).
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I201  No warnings.
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*
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QP28* QF6432* QV1024*
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L1456 1111111111111111111111111111111111111111111111111111*
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L1508 1001101001010111011101110111011110111011101010101010*
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L1924 1111111111111111111111111111111111111111111111111111*
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L1976 1010101001010111011101110111011110111011101010101010*
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L2496 1111111111111111111111111111111111111111111111111111*
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L2548 1001101001010111011101110111011110111011101010101010*
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L2600 0111101001010111011101110111011110111011101010101010*
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L2652 1111111011111111111111111011101101111011101010101010*
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L2704 1111111011111111111111111111111111111111110111011001*
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L2756 1111111011111111111111111111111111111111111011100110*
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L2808 1111111011111111111111111111111111111111110111011110*
222
L2860 1111111011111111111111111111111111111111111011101101*
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L2912 1111111011111111111111111111111111111111110111101111*
224
L2964 1111111011111111111111111111111111111111111011011111*
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L3172 1111111111111111111111111111111111111111111111111111*
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L3224 1010101001010111011101110111011110111011101010101010*
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L3276 1111111011111111111111110111101101111011101010101010*
228
L3328 1111111011111111111111111111011101111011101010101010*
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L3380 1111111011111111111111111111111110111011101010101010*
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L3432 1111111011111111111111111111111111110111101010101010*
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L3484 1111111011111111111111111111111111111111011010101010*
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L3536 1111111011111111111111111111111111111111110110010101*
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L3588 1111111011111111111111111111111111111111111001101010*
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L3640 1111111011111111111111111111111111111111110101010101*
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L3848 1111111111111111111111111111111111111111111111111111*
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L3900 1111111011111111111111111011101101111011101010101010*
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L4420 1111111111111111111111111111111111111111111111111111*
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L4472 1111111011111111111111111111111111111111110111011001*
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L4524 1111111011111111111111111111111111111111111011100110*
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L4576 1111111011111111111111111111111111111111110111011110*
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L4628 1111111011111111111111111111111111111111111011101101*
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L4680 1111111011111111111111111111111111111111110111101111*
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L4732 1111111011111111111111111111111111111111111011011111*
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L6344 1111010101010101011111110011000000110010001100000011*
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L6396 001000100000001000000010000000100000*
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CC3C8*
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I202  1/29/18  8:26 pm  (Monday)
249
I203  Memory usage 10K
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I204  Elapsed time 1 second
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