lan9220 Standard Microsystems Corp., lan9220 Datasheet - Page 30

• Manufacturer Part Number: lan9220
• Description: 16-bit Non-pci Small Form Factor 10/100 Ethernet Controller With Variable Voltage I/o & Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

Revision 2.6 (12-04-08)
1DWORD
{DSAP, SSAP, CTRL, OUI[23:16]}
Example frame configurations:
1DWORD
DST
0
1DWORD
DST
0
DST
0
1
SRC
1
1
SRC
2
Figure 3.7 Ethernet Frame with Length Field and SNAP Header
SRC
2
2
8
1
0
0
3
p
r
o
t
V
I
D
3
L
e
n
3
t
y
p
e
4
S
N
A
P
0
Figure 3.6 Ethernet Frame with VLAN Tag
4
S
N
A
P
1
Figure 3.5 Type II Ethernet Frame
5
16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
DATASHEET
{OUI[15:0], PID[15:0]}
Calculate Checksum
Calculate Checksum
30
L3 Packet
Calculate Checksum
L3 Packet
L3 Packet
C
S
F
C
F
S
F
C
S
SMSC LAN9220
Datasheet