The Increment Interface has two main logical sections:
- A low-frequency increment component controlled by the increment vector input. This accommodates the majority of the statistical counters, which only increment at (or less frequently than) a standard minimum Ethernet frame period. These are decoded in the Vector Decode block and therefore can be edited if desired though this is not recommended for the pre-defined counters.
- A high-frequency increment component. These are generated internally to the Ethernet MAC core level and as such cannot be edited or monitored by you. These are used to accommodate counters which can increment on every cycle, and captured in counters 0-3.