Wrapper Resets - 2.7 English

1G/10G/25G Switching Ethernet Subsystem Product Guide (PG292)

Document ID
PG292
Release Date
2022-05-11
Version
2.7 English

The _wrapper layer of the hierarchy is assumed to be what you instantiate in your own design. There are three resets to be handled as follows:

  • GT_reset
  • tx_reset
  • rx_reset

Timing of the reset signals is handled by the reset sequencer block.

GT_reset
The GT_reset is the asynchronous active-High reset input to the GT. The internal resets of the GT are handled by the GT helper blocks.
tx_reset
The tx_reset is the asynchronous active-High reset for the TX path logic of the 1G/10G/25G Ethernet Subsystem. While it is connected to the GT reset in the example design, this reset can be asserted at any time to reset the TX path independently without disturbing the RX path.
rx_reset
The rx_reset is the asynchronous active-High reset for the RX path logic of the 1G/10G/25G Ethernet Subsystem. While it is connected to the GT reset in the example design, this reset can be asserted at any time to reset the RX path independently without disturbing the TX path.