ARM Technical Support Knowledge Articles

When an interconnect adds bits to the ID field does it add high-order bits or low-order bits?

Applies to: AXI

Answer

The protocol allows an interconnect to add ID bits to either end of the ID field. A common choice will be to add low-order bits and shift the ID bits from the master to higher order bits in the ID field. This allows the interconnect itself to always use the same ID bits.

Article last edited on: 2008-09-09 15:47:44

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