Difference between revisions of "M9047 grant continuity card"
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| − | The '''M9047 grant continuity card''' was [[DEC card form factor|dual]] width card which plugged into | + | [[Image:M9047Back.jpg|300px|thumb|right|M9047 card; back side, showing grant jumpers]] |
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| + | The '''M9047 grant continuity card''' was [[DEC card form factor|dual]] width card which plugged into any unused slot in a [[QBUS]] [[backplane]], and carried the [[bus grant line]] [[signal]]s from the 'in' pins to the 'out' pins in the slot. | ||
It carried not only the [[Direct Memory Access|DMA]] grant line [[DMA Request and Grant|DMG]], but also the [[interrupt]] grant line (IAK, on pins BIAKI - pin AM2 - and BIAKO - pin AN2). | It carried not only the [[Direct Memory Access|DMA]] grant line [[DMA Request and Grant|DMG]], but also the [[interrupt]] grant line (IAK, on pins BIAKI - pin AM2 - and BIAKO - pin AN2). | ||
[[Category: DEC Boards]] | [[Category: DEC Boards]] | ||
Latest revision as of 11:59, 3 December 2021
The M9047 grant continuity card was dual width card which plugged into any unused slot in a QBUS backplane, and carried the bus grant line signals from the 'in' pins to the 'out' pins in the slot.
It carried not only the DMA grant line DMG, but also the interrupt grant line (IAK, on pins BIAKI - pin AM2 - and BIAKO - pin AN2).
