LAN9312 datasheet(324/458 Pages) SMSC

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

Revision 1.2 (04-08-08)

324

SMSC LAN9312

DATASHEET

14.5.2.2

Port x MAC Receive Configuration Register (MAC_RX_CFG_x)

This read/write register configures the packet type passing parameters of the port.

Port0: 0401h

Size:

32 bits

Port1: 0801h

Port2: 0C01h

BITS

DESCRIPTION

TYPE

DEFAULT

31:8

RESERVED

Note:

This bit must always be written as 0.

R/W

RESERVED

Enable Receive Own Transmit

When set, the switch port will receive its own transmission if it is looped back

from the PHY. Normally, this function is only used in Half Duplex PHY

loopback.

R/W

RESERVED

Jumbo2K

When set, the maximum packet size accepted is 2048 bytes. Statistics

boundaries are also adjusted.

R/W

RESERVED

Reject MAC Types

When set, MAC control frames (packets with a type field of 8808h) are

filtered. When cleared, MAC Control frames, other than MAC Control Pause

frames, are sent to the forwarding process. MAC Control Pause frames are

always consumed by the switch.

R/W

RX Enable

When set, the receive port is enabled. When cleared, the receive port is

disabled.

R/W

LAN9312 Datasheet(PDF) 324 Page - SMSC Corporation

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