KSZ8873MLLI Micrel Inc, KSZ8873MLLI Datasheet - Page 59

• Manufacturer Part Number: KSZ8873MLLI
• Description: IC ETHERNET SWITCH 3PORT 64LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873MLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• 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
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Micrel, Inc.
Register 22[6:0] (0x16): Port 1 Q0 ingress data rate limit
Register 38[6:0] (0x26): Port 2 Q0 ingress data rate limit
Register 54[6:0] (0x36): Port 3 Q0 ingress data rate limit
September 2009
Bit
4
3-2
1
0
Bit
7
6-0
filtering
enable
MACA2
(not for
0x35)
Drop Ingress
Tagged
Frame
Count IFG
Count Pre
RMII
REFCLK
INVERT
Data Rate
limit
Name
Limit Mode
Name
Q0 Ingress
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
=0, Disable
=1, Enable
=0, Disable
Ingress Limit Mode
These bits determine what kinds of frames are limited and counted
against ingress rate limiting.
=00, Limit and count all frames
=01, Limit and count Broadcast, Multicast, and flooded unicast
frames
=10, Limit and count Broadcast and Multicast frames only
=11, Limit and count Broadcast frames only
Count IFG bytes
=1, Each frame’s minimum inter frame gap
(IFG) bytes (12 per frame) are included in Ingress and Egress rate
limiting calculations.
=0, IFG bytes are not counted.
Count Preamble bytes
=1, Each frame’s preamble bytes (8 per
frame) are included in Ingress and Egress rate limiting calculations.
=0, Preamble bytes are not counted.
Description
=1, Port 3 inverted refclk selected
=0, Port 3 original refclk selected
Ingress data rate limit for priority 0 frames
Ingress traffic from this priority queue is shaped according to the
ingress Data Rate Limit Table.
59
Default
0
00
0
0
KSZ8873MLL/FLL/RLL
Default
0
Note: Not
Applied to
Reg.38(Port
2)
0
M9999-092309-1.2