10.4 No Default Host

After the end of the current access, if no other request is pending, the client is disconnected from all hosts. This saves power by preventing useless bus activity, in particular when the bus target clock is disabled by software.

This configuration incurs one latency clock cycle for the first access of a burst after bus Idle. Arbitration without default host may be used for hosts that perform significant bursts or several transfers with no Idle cycle in-between, or if the client bus bandwidth is widely used by one or more hosts.

This configuration provides no benefit on access latency or bandwidth when reaching maximum client bus throughput whatever the number of requesting hosts.