lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 324

• Manufacturer Part Number: lan9312
• Description: Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (04-08-08)
14.5.2.2
BITS
31:8
7
6
5
4
3
2
1
0
RESERVED
RESERVED
Note:
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.
RESERVED
Jumbo2K
When set, the maximum packet size accepted is 2048 bytes. Statistics
boundaries are also adjusted.
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.
RX Enable
When set, the receive port is enabled. When cleared, the receive port is
disabled.
Port x MAC Receive Configuration Register (MAC_RX_CFG_x)
This read/write register configures the packet type passing parameters of the port.
This bit must always be written as 0.
Register #:
Port0: 0401h
Port1: 0801h
Port2: 0C01h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
324
Size:
32 bits
TYPE
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
SMSC LAN9312
DEFAULT
Datasheet
0b
0b
0b
1b
1b
-
-
-
-