AMBA AHB HREADYOUT signal
I have a question about the HREADYOUT signal of an AMBA AHB slave:
Is it allowable for the slave to drive the HREADYOUT signal low (HREADY <= '0') when it's not being addressed by any master?
Or must it assert an HREADYOUT <= '1' when it's not being addressed?
This is strictly a protocol compliance question - this would dictate the default state machine value for the HREADYOUT signal.
Or in other words - the HREADYOUT value at the "idle_state" of the FSM.
Does anyone know the answer?
Do the specs dictate such a value? or it's up to the designer to decide?
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