The following ports were removed from the core interface and are driven internally in the core.
|
In/Out |
Port Name and Width |
Description |
What to do |
|---|---|---|---|
|
Input |
link_timer_value_chx[8:0] |
Used to configure the duration of the Auto-Negotiation Link Timer period. The duration of this timer is set to the binary number input into this port multiplied by 4096 clock periods of the 125 MHz reference clock (8 ns). |
For normal operation the value of link timer is set internally to "000110010" as specified in QSGMII specification for 1.6 ms link time. To speed up simulation this value can be set internally to "000000100." This is done though xci file by the parameter EXAMPLE_SIMULATION. |