Bulk data transfer over MDIO (clause 45) bus
US10824551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Apr 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for transfer of bulk data from a leader device to a follower device over a bus are described. The methods employ address frames and write frames. The bus, the address frames, and the write frames are compatible with Clause 45 of IEEE Std 802.3-2015. The methods achieve a reduction in the number of frames employed to transfer data as contrasted with conventional indirect write transactions. After transmitting on a Management Data Input/Output (MDIO) data signal an address frame that specifies the follower device and that contains the address of an initial register, the leader device proceeds to transmit on the MDIO data signal multiple write frames that specify the target follower device, the multiple write frames transmitted one at a time, each write frame containing a different block of the bulk data. A follower device implements a post-write-increment-address action, despite the absence of any definition in Clause 45 of IEEE Std 802.3-2015 of a post-write-increment-address frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.