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LAN9313I Datasheet(PDF) 70 Page - SMSC Corporation

Part # LAN9313I
Description  Three Port 10/100 Managed Ethernet Switch with MII
PDF  398 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9313I Datasheet(HTML) 70 Page - SMSC Corporation

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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Revision 1.2 (04-08-08)
70
SMSC LAN9313/LAN9313i
DATASHEET
The transmit queue priority is based on the packet type and device configuration as shown in
Figure 6.5. Refer to Section 13.3.3.16, "Switch Engine Global Ingress Configuration Register
(SWE_GLOBAL_INGRSS_CFG)," on page 329 for definitions of the configuration bits.
Figure 6.5 Switch Engine Transmit Queue Calculation
Queue =
ALR Priority
DA Highest
Priority
ALR Static Bit
Y
Y
Resolved Priority =
Priority Regen[VLAN
Priority]
N
Packet is IPv 4/v6
& Use IP
Resolved Priority =
IP Precedence
Y
Use Precedence
Y
N
Resolved Priority =
DIFFSERV[TC]
N
N
Y
VLAN Enable &
Packet is
Tagged
Y
N
N
Resolved Priority =
Default Priority[Source
Port]
wait for ALR result
Queue =
Traffic Class[Resolved Priority]
Packet is IPv 4
Resolved Priority =
DIFFSERV[TOS]
Y
N
Get Queue Done
VL Higher
Priority
VLAN Enable &
Packet is
Tagged
N
Y
Get Queue
Packet from Host
N
Y



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