LAN9313-NZW SMSC, LAN9313-NZW Datasheet - Page 65
![Ethernet ICs Three Port 10/100 Ethernet Switch](/photos/27/13/271356/lan9313_sml.jpg)
LAN9313-NZW
Manufacturer Part Number
LAN9313-NZW
Description
Ethernet ICs Three Port 10/100 Ethernet Switch
Manufacturer
SMSC
Type
Three Port Managed Ethernet Switchr
Datasheet
1.LAN9313-NZW.pdf
(399 pages)
Specifications of LAN9313-NZW
Ethernet Connection Type
10 Base-T, 100 Base-TX
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Product
Ethernet Switches
Number Of Transceivers
1
Standard Supported
802.3, 802.3u
Data Rate
10 Mbps, 100 Mbps
Supply Voltage (max)
3.6 V
Supply Voltage (min)
0 V
Supply Current (max)
155 mA, 270 mA
Maximum Operating Temperature
+ 70 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9313-NZW
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
LAN9313-NZW
Manufacturer:
SMSC
Quantity:
20 000
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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
Bit
6.4
6.4.1
Valid
56
Override
The switch engine (SWE) is a VLAN layer 2 (link layer) switching engine supporting 3 ports. The SWE
supports the following types of frame formats: untagged frames, VLAN tagged frames, and priority
tagged frames. The SWE supports both the 802.3 and Ethernet II frame formats.
The SWE provides the control for all forwarding/filtering rules. It handles the address learning and
aging, and the destination port resolution based upon the MAC address and VLAN of the packet. The
SWE implements the standard bridge port states for spanning tree and provides packet metering for
input rate control. It also implements port mirroring, broadcast throttling, and multicast pruning and
filtering. Packet priorities are supported based on the IPv4 TOS bits and IPv6 Traffic Class bits using
a DIFFSERV Table mapping, the non-DIFFSERV mapped IPv4 precedence bits, VLAN priority using
a per port Priority Regeneration Table, DA based static priority, and Traffic Class mapping to one of 4
QoS transmit priority queues.
The following sections detail the various features of the switch engine.
MAC Address Lookup Table
The Address Logic Resolution (ALR) maintains a 1024 entry MAC Address Table. The ALR searches
the table for the destination MAC address. If the search finds a match, the associated data is returned
indicating the destination port or ports, whether to filter the packet, the packets priority (used if
enabled), and whether to override the ingress and egress spanning tree port state.
the ALR table entry structure. Refer to the
(SWE_ALR_WR_DAT_0)
detailed descriptions of these bits.
Switch Engine (SWE)
Age /
55
Total multicast packets
Total packets with a late collision
Total packets with excessive collisions
Total packets with a single collision
Total packets with multiple collisions
Total collision count
Static
54
Filter
53
(Section 13.3.2.42, on page
Figure 6.3 ALR Table Entry Structure
and
(Section 13.3.2.37, on page
52
Switch Engine ALR Write Data 1 Register (SWE_ALR_WR_DAT_1)
Priority
DATASHEET
(Section 13.3.2.38, on page
51
(Section 13.3.2.40, on page
(Section 13.3.2.41, on page
(Section 13.3.2.39, on page
65
50
Switch Engine ALR Write Data 0 Register
309)
304)
Port
49
305)
48
307)
308)
306)
47
MAC Address
Revision 1.7 (06-29-10)
Figure 6.3
...
displays
0
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