CAUI-4 requires GTY or GTM transceivers
which are available in select devices. Runtime switchable CAU-10/CAUI-4 require
GTY transceivers available only in select devices.
The line rate of 25.78125 Gb/s is
available on select devices in typical speed grades.
The line rate of 53.125 Gb/s (GTM
transceivers) is available on select devices.
100GAUI-4 requires GTY or GTM
transceivers which are available in select devices.
The core instantiates the CMAC block along with the necessary GTH, GTY, or GTM transceivers.
The core provides an example of how the two blocks are connected together, along with the
reset and clocking for those blocks.
The integrated block is designed to IEEE std 802.3-2012.
The following figure illustrates the following interfaces to the integrated
CMAC block.
Serial transceiver interface
User-side transmit and receive LBUS or AXIS interface
Pause processing
IEEE 1588-2008 timestamping interface
Status/Control interface
DRP interface used for configuration
RS-FEC IP Block
Figure 1. Integrated CMAC Block for 100 Gb/s Ethernet