LAN9220 Datasheet, PDF (30/150 Pages) SMSC Corporation – 16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support

16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Datasheet
Example frame configurations:
DST
p
SRC
r
o
t
L3 Packet
F
C
S
0123
1DWORD
Calculate Checksum
Figure 3.5 Type II Ethernet Frame
DST
SRC
8
1
0
0
V
I
D
t
y
p
e
L3 Packet
F
C
S
01234
1DWORD
Calculate Checksum
Figure 3.6 Ethernet Frame with VLAN Tag
{DSAP, SSAP, CTRL, OUI[23:16]}
{OUI[15:0], PID[15:0]}
SS
LN N
F
DST SRC e A A
L3 Packet
C
nP P
S
01
012345
1DWORD
Calculate Checksum
Figure 3.7 Ethernet Frame with Length Field and SNAP Header
Revision 2.6 (12-04-08)
30
DATASHEET
SMSC LAN9220