- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
We have a customer that is now requiring an EDR Infiniband interface. This means being able to program the transceiver PHY for a 40 bit interface and then reprogramming for a 64 bit interface to support 64B/66B encoding. Unfortunately, the part on the board is a S10 with E-tiles only. I tried generating the transceiver PHY and can generate the SDR (2.5G 8B/10B operation), but EDR (4X serdes at 25G) will only let me program a 32-bit interface to the phy.
Since the E-Tile does not provide the same PCS logic as an H-Tile we would use soft logic in the fabric for a gearbox at EDR (100G) rates. But we would need a 64-bit interface into the PHY to make timing. Is there some other way that I'm not seeing yet, to generate a 64-bit interface into the PHY or to otherwise program the PCS/PMA to support 64B/66B operation for Infiniband support?
Thanks,
Skip
Link Copied
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
The E-tile PCS does support 64B/66B encoder/decoder, but only through the Ethernet Hard IP, not the Native PHY IP. Please refer this page for more details:
Regards

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page