Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | - | 1 | || FILE: #0054.PLD |
| 2 | || PROJ: 20120601 |
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| 3 | || PART: G16V8-#0054 |
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| 4 | || |
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| 5 | || DEV : GAL16V8 |
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| 6 | || |
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| 7 | || DESC: DECODER CONTROL REGISTER |
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| 8 | || |
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| 9 | | |
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| 10 | |GAL16V8A |
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| 11 | | |
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| 12 | || INPUT |
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| 13 | | 1:A4, 2:A5, 3:A6, 4:A7, 5:VMA, 6:IO0, 7:PHI0, 8:RW, 9:PHI2, |
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| 14 | | 11:X1, 12:X2, |
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| 15 | || OUTPUT |
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| 16 | | 13:PHI2N, 14:DBE, 15:Y1, 16:Y2, 17:IVR, 18:CRW, 19:CRR |
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| 17 | | |
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| 18 | | PROPERTY: "SIMPLE" |
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| 19 | | |
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| 20 | | ACTIVE-LOW: PHI2N, Y1, Y2, IVR, CRW, CRR |
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| 21 | | |
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| 22 | | SIGNATURE: "0054 " |
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| 23 | | |
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| 24 | || IOX -> FC00 - FC0F |
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| 25 | | IOX = (IO0' & A7' & A6' & A5' & A4') |
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| 26 | | CRR = (IOX & RW & PHI2) |
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| 27 | | CRW = (IOX & RW' & PHI0 & PHI2) |
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| 28 | | IVR = (IOX & RW & PHI2) |
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| 29 | | PHI2N = PHI2 |
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| 30 | | Y1 = X1 |
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| 31 | | Y2 = X2 |
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| 32 | | DBE = (IOX # VMA) |