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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | - | 1 | || FILE: #0010.PLD |
| 2 | || PROJ: 20120608 |
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| 3 | || PART: G16V8-#0010 |
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| 4 | || |
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| 5 | || DEV : GAL16V8 |
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| 6 | || |
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| 7 | || DESC: ACIA CONTROL |
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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:DTR, 2:RS, 3:TRM, 4:PHI2, 5:WS, 6:ACIA, 7:EN, 8:RDY, 9:SE, 11:-, |
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| 14 | || OUTPUT |
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| 15 | | 12:G, 13:CS, 14:TA, 15:TB, 16:TXE, 17:J, 18:PHI2N, 19:K |
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| 16 | | |
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| 17 | || |
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| 18 | | ACTIVE-LOW: G, CS, J, PHI2N |
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| 19 | | |
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| 20 | | PROPERTY: "SIMPLE" |
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| 21 | | |
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| 22 | | SIGNATURE: "0010 " |
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| 23 | | |
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| 24 | || -------------------------------------------------------- |
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| 25 | || ABILITA TX RS485 |
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| 26 | | TXE = (RS' & DTR') |
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| 27 | | TA = TRM |
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| 28 | | TB = TRM |
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| 29 | || |
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| 30 | || -------------------------------------------------------- |
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| 31 | || -------------------------------------------------------- |
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| 32 | || SEGNALI COMANDO FLIP-FLOP WAIT |
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| 33 | | PHI2N = PHI2 |
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| 34 | || ABILITAZIONE WAIT |
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| 35 | | WTX = (ACIA' & WS') |
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| 36 | || COMANDO J,K |
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| 37 | | DATA = (RDY # WTX') |
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| 38 | | J = DATA |
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| 39 | | K = DATA |
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| 40 | || |
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| 41 | || -------------------------------------------------------- |
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| 42 | | ACIAA = (ACIA' & WS & PHI2) || NO WAIT |
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| 43 | | ACIAB = (ACIA' & WS' & EN) || WAIT |
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| 44 | | CS = (ACIAA # ACIAB) |
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| 45 | || |
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| 46 | || -------------------------------------------------------- |
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| 47 | | GX = (ACIA' & SE) |
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| 48 | | GA = (ACIAA & SE') |
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| 49 | | GB = (ACIAB & SE') |
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| 50 | | G = (GX # GA # GB) |