In minimum mode, the device requests the bus through the HOLD signal, and the 8086 acknowledges it with HLDA. Three flip-flops manage the request, letting it proceed when the 8086 is ready.
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In minimum mode, the device requests the bus through the HOLD signal, and the 8086 acknowledges it with HLDA. Three flip-flops manage the request, letting it proceed when the 8086 is ready. 1 comment
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@kenshirriff I guess 8237 must only use the HOLD/HLDA lines. I'm not sure I even knew about the RQ/GT lines.