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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | - | 1 | || FILE: #0200.PLD |
| 2 | || PROJ: 20170501 |
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| 3 | || ??? |
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| 4 | || |
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| 5 | || PART: G18V10-#0200 |
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| 6 | || |
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| 7 | || DEV : GAL18V10 |
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| 8 | || |
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| 9 | || DESC: CLK & RDY, NMI, IRQ CONTROL |
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| 10 | || |
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| 11 | | |
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| 12 | |GAL18V10 |
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| 13 | | |
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| 14 | || INPUT |
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| 15 | | 1:CLK, 2:ENI, 3:INMI, 4:IIRQ, 5:RDY0, 6:RDY1, 7:RDY2, 8:RDY3, 9:RDY4, |
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| 16 | | 11:RDY5, 12:RDY6, 13:RDY7, |
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| 17 | || OUTPUT |
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| 18 | | 19:Q0, 18:Q1, 17:NMI, 16:IRQ, 15:CRDY, 14:RDYN |
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| 19 | | |
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| 20 | | ACTIVE-LOW: NMI, IRQ, RDYN |
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| 21 | | |
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| 22 | | SIGNATURE: "0200 " |
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| 23 | | |
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| 24 | || -------------------------------------------------------- |
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| 25 | || |
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| 26 | | Q[1..0] = CLK // Q[1..0] + 1 || Q0 = CLK/2, Q1 = CLK/4 |
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| 27 | | RDYO = (RDY0 & RDY1 & RDY2 & RDY3 & RDY4 & RDY5 & RDY6 & RDY7) |
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| 28 | | CRDY = RDYO |
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| 29 | | RDYN = RDYO |
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| 30 | | NMIN = INMI' |
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| 31 | | IRQN = IIRQ' |
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| 32 | | IRQ = IRQN & ENI |
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| 33 | | NMI = NMIN & ENI |