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Diffstat (limited to 'share/man/man4/vr.4')
| -rw-r--r-- | share/man/man4/vr.4 | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/share/man/man4/vr.4 b/share/man/man4/vr.4 index 8100bfe..7b914e8 100644 --- a/share/man/man4/vr.4 +++ b/share/man/man4/vr.4 @@ -45,15 +45,16 @@ The driver provides support for PCI ethernet adapters and embedded controllers based on the VIA Technologies VT3043 Rhine I and VT86C100A Rhine II fast ethernet controller chips. This includes -the D-Link DFE530-TX and various other commodity fast ethernet +the D-Link DFE530-TX, the Hawking Technologies PN102TX, the +AOpen/Acer ALN-320, and various other commodity fast ethernet cards. .Pp -The VIA Rhine chips use bus master DMA and have a software interface -designed to resemble that of the DEC 21x4x "tulip" chips. The major -differences are that the receive filter in the Rhine chips is -much simpler and is programmed through registers rather than by -downloading a special setup frame through the transmit DMA engine, -and that transmit and receive DMA buffers must be longword +The VIA Rhine chips use bus master DMA and have a descriptor layout +designed to resemble that of the DEC 21x4x "tulip" chips. The register +layout is different however and the receive filter in the Rhine chips +is much simpler and is programmed through registers rather than by +downloading a special setup frame through the transmit DMA engine. +Transmit and receive DMA buffers must be longword aligned. The Rhine chips are meant to be interfaced with external physical layer devices via an MII bus. They support both 10 and 100Mbps speeds in either full or half duplex. |
