KSZ8873MLL Micrel Inc, KSZ8873MLL Datasheet - Page 57

• Manufacturer Part Number: KSZ8873MLL
• Description: IC ETHERNET SWITCH 3PORT 64-LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873MLL

• Data Rate: 100Mbps
• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• No. Of Ports: 3
• Ethernet Type: IEEE 802.3u
• Supply Current: 115mA
• Supply Voltage Range: 2.5V, 3.3V
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Svhc: No SVHC (15-Dec-2010)
• Base: RoHS Compliant
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog/Digital
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Interface Type: MII, RMII
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3459

Micrel, Inc.
Register 17 (0x11): Port 1 Control 1
Register 33 (0x21): Port 2 Control 1
Register 49 (0x31): Port 3 Control 1
Register 18 (0x12): Port 1 Control 2
Register 34 (0x22): Port 2 Control 2
Register 50 (0x32): Port 3 Control 2
September 2010
Bit
7
6
5
4
3
2-0
Bit
7
6
5
4
Sniffer Port
Receive
Sniff
Transmit
Sniff
Double Tag
User Priority
Ceiling
Port VLAN
membership
Enable 2
Queue Split
of Tx Queue
Ingress
VLAN
Filtering
Discard non
PVID
Packets
Force Flow
Control
Name
Name
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
=1, Port is designated as sniffer port and will transmit packets that are
monitored.
=0, Port is a normal port
=1, All packets received on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
=0, No receive monitoring
=1, All packets transmitted on the port will be marked as “monitored
packets” and forwarded to the designated “sniffer port”
=0, No transmit monitoring
=1, All packets will be tagged with port default tag of ingress port
regardless of the original packets are tagged or not
=0, Do not double tagged on all packets
=1, If the packet’s “user priority field” is greater than the “user priority
field” in the port default tag register, replace the packet’s “user priority
field” with the “user priority field” in the port default tag register.
=0, Do not compare and replace the packet’s ‘user priority field”
Define the port’s egress port VLAN membership. The port can only
communicate within the membership. Bit 2 stands for port 3, bit 1 stands
for port 2, bit 0 stands for port 1.
An ‘1’ includes a port in the membership.
An ‘0’ excludes a port from membership.
Description
=1, Enable
It cannot be enable at the same time with split 4 queue at register 16,32
and 48 bit 0.
=0, Disable
=1,Tthe switch will discard packets whose VID port membership in
VLAN table bits [18:16] does not include the ingress port.
=0, No ingress VLAN filtering.
=1, The switch will discard packets whose VID does not match ingress
port default VID.
=0, No packets will be discarded
=1, Will always enable full duplex flow control on the port, regardless of
AN result.
=0, Full duplex flow control is enabled based on AN result.
57
KSZ8873MLL/FLL/RLL
Default
0
0
0
Pin value during
reset:
For port 1, P1FFC
pin
For port 2,
SMRXD30 pin
For port 3, this bit
has no meaning.
Flow control is set
by Reg. 6 bit 5.
Default
0
0
0
0
0
111
M9999-092309-1.2