LAN9312-NU SMSC, LAN9312-NU Datasheet - Page 388

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

Specifications of LAN9312-NU

• 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): 185 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
14.5.3.21
BITS
31:9
7:5
4:2
8
1
0
RESERVED
Enable RX Mirroring Filtered
When set, packets that would normally have been filtered are included in the
receive mirroring function and are sent only to the sniffer port. When
cleared, filtered packets are not mirrored.
Note:
Sniffer Port
These bits specify the sniffer port that transmits packets that are monitored.
Bits 7,6,5 correspond to switch ports 2,1,0 respectively.
Note:
Mirrored Port
These bits specify if a port is to be mirrored. Bits 4,3,2 correspond to switch
ports 2,1,0 respectively.
Note:
Enable RX Mirroring
This bit enables packets received on the mirrored ports to be also sent to
the sniffer port.
Enable TX Mirroring
This bit enables packets transmitted on the mirrored ports to be also sent to
the sniffer port.
Switch Engine Port Mirroring Register (SWE_PORT_MIRROR)
This register is used to configure port mirroring.
The Ingress Filtered Count Registers will still count these packets
as filtered and the
(SWE_IPR)
Only one port should be set as the sniffer.
Multiple ports can be set as mirrored.
Register #:
will still register a drop interrupt.
Switch Engine Interrupt Pending Register
1846h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
388
Size:
32 bits
TYPE
R/W
R/W
R/W
R/W
R/W
RO
SMSC LAN9312
DEFAULT
00b
00b
Datasheet
0b
0b
0b
-