In the datasheet for the SM320C6678-HIREL device, the PCIe serdes are derated to 3.125Gbps operation in extended temp range -55 to 115, however there is no similar note for the SRIO serdes.
Can the SRIO serdes maintain the x4 5Gbps speed in the HI-RES part over the temperature range of -55 to 115C?
Mike