Datasheet

16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Datasheet
Revision 2.9 (03-01-12) 30 SMSC LAN9220
DATASHEET
Example frame configurations:
Figure 3.3 Type II Ethernet Frame
Figure 3.4 Ethernet Frame with VLAN Tag
Figure 3.5 Ethernet Frame with Length Field and SNAP Header
DST SRC
p
r
o
t
0 1 2 3
L3 Packet
F
C
S
Calculate Checksum
1DWORD
DST SRC
8
1
0
0
V
I
D
0 1 2 3
t
y
p
e
4
L3 Packet
F
C
S
Calculate Checksum
1DWORD
DST SRC L3 Packet
F
C
S
S
N
A
P
0
S
N
A
P
1
L
e
n
0 1 2
{DSAP, SSAP, CTRL, OUI[23:16]}
{OUI[15:0], PID[15:0]}
3 4 5
Calculate Checksum
1DWORD