Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Datasheet

BITS

DESCRIPTION

TYPE

DEFAULT

 

 

 

 

14:13

RESERVED

RO

-

 

 

 

 

12:8

RX Data Offset (RXDOFF)

R/W

00000b

 

This field controls the offset value, in bytes, that is added to the beginning

 

 

 

of an RX data packet. The start of the valid data will be shifted by the

 

 

 

number of bytes specified in this field. An offset of 0-31 bytes is a valid

 

 

 

number of offset bytes.

 

 

 

Note: The two LSBs of this field (D[9:8]) must not be modified while the

 

 

 

RX is running. The receiver must be halted, and all data purged

 

 

 

before these two bits can be modified. The upper three bits

 

 

 

(DWORD offset) may be modified while the receiver is running.

 

 

 

Modifications to the upper bits will take affect on the next DWORD

 

 

 

read.

 

 

 

 

 

 

7:0

RESERVED

RO

-

 

 

 

 

Revision 1.4 (08-19-08)

182

SMSC LAN9311/LAN9311i

 

DATASHEET