LAN9303-ABZJ Standard Microsystems (SMSC), LAN9303-ABZJ Datasheet - Page 71
LAN9303-ABZJ
Manufacturer Part Number
LAN9303-ABZJ
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9303-ABZJ.pdf
(367 pages)
Specifications of LAN9303-ABZJ
Number Of Primary Switch Ports
3
Operating Supply Voltage (typ)
3.3V
Fiber Support
No
Power Supply Type
Analog
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LAN9303-ABZJ
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
Datasheet
SMSC LAN9303/LAN9303i
6.4.3
IPv4 Precedence
IPv4(TOS)
IPv6(TC)
VLAN Priority
Source Port
ALR Priority
Note: For the last three cases, if the VID is not in the VLAN table, the VLAN is considered foreign
Transmit Priority Queue Selection
The transmit priority queue may be selected from five options. As shown in
be based on:
All options are sent through the Traffic Class table which maps the selected priority to one of the four
output queues.
6b
the static value for the destination address in the ALR table
the precedence bits in the IPv4 TOS octet
the DIFFSERV mapping table indexed by the IPv4 TOS octet or the IPv6 Traffic Class octet
the VLAN tag priority field using the per port Priority Regeneration table
the port default
3b
Packet is from Host
2b
VL Higher Priority
Packet is Tagged
3b
Use Precedence
and the membership result is NULL. A NULL membership will result in the packet being filtered
if Enable Membership Checking is set. A NULL membership will also result in the packet being
filtered if the destination address is not found in the ALR table (since the packet would have
no destinations).
Packet is IPv4
programmable
DiffServ table
Packet is IP
programmable
programmable
Regeneration
port default
Use Tag
per port
Priority
Use IP
3b
table
table
Figure 6.4 Switch Engine Transmit Queue Selection
3b
3b
3b
DATASHEET
calculation
priority
ALR Priority Enable Bit
DA Highest Priority
71
static DA
override
programmable
Traffic Class
table
Figure
Revision 1.4 (07-07-10)
6.4, the priority may
2b
priority queue
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