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Altera_Forum
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14 years ago

TSE "small MAC" isn't asserting fifo_rx_dsav signal for min size Eth frames

I have a "Small MAC" instantiation of the TSE for a 100 Mbit link. It appears that it isn't asserting the fifo_rx_dsav signal for small messages. When we try to ping our DUT (device under test) fro...
Altera_Forum's avatar
Altera_Forum
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14 years ago

IIRC the minimum size is 64 bytes including the CRC.

Does the 'small mac' put the CRC into the rx fifo? Does it have an option to?

If the crc is supressed, enabling it might get you to the rx threashold.

However I'd have thought there was another 'frame status available' signal. Otherwise rx runts (packets less than 64 bytes) are difficult to remove from the fifo.