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Bunch of wires PHY specification [pdf]

https://www.opencompute.org/documents/bunch-of-wires-phy-specification-pdf

by altairprime • 4 years ago

3 1 4 years ago

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opencompute.org

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altairprime• 4 years ago

Previously: https://news.ycombinator.com/item?id=21968724

Summary, in the spec’s own words:

A BoW PHY slice either transmits or receives 16 bits of data between die. The BoW is a source-synchronous PHY and each transmitting PHY slice transmits a complementary clock signal CLK+ and CLK- with the data. A BoW PHY optionally has two additional wires designated FEC (for Forward Error Correction) and AUX, for other optional functions such as Data Bus Inversion (DBI).

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