LAN9312-NZW SMSC, LAN9312-NZW Datasheet - Page 417

• Manufacturer Part Number: LAN9312-NZW
• Description: Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9312-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): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 186 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
14.5.4.8
BITS
31:0
Dropped Count
These bits count the number of dropped packets received on Port 2 and is
cleared when read.
Note:
Buffer Manager Port 2 Drop Count Register (BM_DRP_CNT_SRC_2)
This register counts the number of packets dropped by the Buffer Manager that were received on Port
2. This count includes packets dropped due to buffer space limits and ingress rate limit discarding (Red
and random Yellow dropping).
The counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 481 hours.
Register #:
1C07h
DESCRIPTION
DATASHEET
417
Size:
32 bits
TYPE
RC
Revision 1.7 (06-29-10)
00000000h
DEFAULT