When the Micro Channel is running in streaming data mode, the 32 address lines are only used during the first cycle of the transfer. These address lines are therefore available for transfer of an additional four bytes during each following cycle. This mode is called multiplexed streaming data mode and gives an effective width of 64 bits (8 bytes) for each cycle. The resulting effective data rate is 80MB per second. This is shown in Figure "Multiplexed Streaming Data Mode".
IBM has also disclosed that upcoming generations of Micro Channel systems may implement a faster basic transfer cycle of 100 ns rather than the current 200 ns. With the current cycle the Micro Channel is able to transfer sequential blocks of data with transfer rates of 20, 40, and 80MB per second. Systems implementing the faster transfer cycle would be able to reach transfer speeds of up to 160MB per second. These rates are essential for advanced function bus masters, which must move large blocks of sequential data.