Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Ring Structure:

DESCRIPTOR 0

DESCRIPTOR 1

DESCRIPTOR n

BUFFER 1

BUFFER 2

BUFFER 1

BUFFER 2

BUFFER 1

BUFFER 2

Chain Structure:

BUFFER 1

DESCRIPTOR 0

BUFFER 1

DESCRIPTOR 1

NEXT DESCRIPTOR

Figure 3.15 Ring and Chain Descriptor Structures

Revision 1.22 (09-25-08)

40

SMSC LAN9420/LAN9420i

 

DATASHEET