LAN9313-NZW SMSC, LAN9313-NZW Datasheet - Page 83
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
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Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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Quantity:
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Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
6.5.7
6.6
Counters
A counter is maintained per port that contains the number of packets dropped due to buffer space limits
and ingress rate limit discarding (Red and random Yellow dropping). These counters are accessible
via the following registers:
A counter is maintained per port that contains the number of packets dropped due solely to ingress
rate limit discarding (Red and random Yellow dropping). This count value can be subtracted from the
drop counter, as described above, to obtain the drop counts due solely to buffer space limits. The
ingress rate drop counters are accessible via the following registers:
The switch fabric is capable of generating multiple maskable interrupts from the buffer manager, switch
engine, and MACs. These interrupts are detailed in
page
Switch Fabric Interrupts
Buffer Manager Port 0 Drop Count Register (BM_DRP_CNT_SRC_MII)
Buffer Manager Port 1 Drop Count Register (BM_DRP_CNT_SRC_1)
Buffer Manager Port 2 Drop Count Register (BM_DRP_CNT_SRC_2)
Buffer Manager Port 0 Ingress Rate Drop Count Register (BM_RATE_DRP_CNT_SRC_MII)
Buffer Manager Port 1 Ingress Rate Drop Count Register (BM_RATE_DRP_CNT_SRC_1)
Buffer Manager Port 2 Ingress Rate Drop Count Register (BM_RATE_DRP_CNT_SRC_2)
54.
DATASHEET
83
Section 5.2.2, "Switch Fabric Interrupts," on
Revision 1.7 (06-29-10)
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