KSZ8873MLL Micrel Inc, KSZ8873MLL Datasheet - Page 81
![IC ETHERNET SWITCH 3PORT 64-LQFP](/photos/6/81/68149/64-lqfp-micrel_sml.jpg)
KSZ8873MLL
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8873MLL
Manufacturer:
Micrel Inc
Quantity:
1 934
Company:
Part Number:
KSZ8873MLL
Manufacturer:
ADI
Quantity:
27
Company:
Part Number:
KSZ8873MLL AM
Manufacturer:
Micrel
Quantity:
1 638
Company:
Part Number:
KSZ8873MLLJ
Manufacturer:
Micrel
Quantity:
323
Micrel, Inc.
Static MAC Address Table
The KSZ8873 supports both a static and a dynamic MAC address table. In response to a Destination Address (DA) look
up, the KSZ8873 searches both tables to make a packet forwarding decision. In response to a Source Address (SA) look
up, only the dynamic table is searched for aging, migration and learning purposes.
The static DA look up result takes precedence over the dynamic DA look up result. If there is a DA match in both tables,
the result from the static table is used. The entries in the static table will not be aged out by the KSZ8873.
The static table is accessed by a external processor via the SMI, SPI or I2C interfaces. The external processor performs
all addition, modification and deletion of static MAC table entries.
Examples:
September 2010
1. Static Address Table Read (Read the 2
Then,
Bit
57-54
53
52
51
50-48
47-0
Write to reg. 121 (0x79) with 0x10
Write to reg. 122 (0x7A) with 0x01
Read reg. 124 (0x7C), static table bits [57:56]
Read reg. 125 (0x7D), static table bits [55:48]
Read reg. 126 (0x7E), static table bits [47:40]
Read reg. 127 (0x7F), static table bits [39:32]
Read reg. 128 (0x80), static table bits [31:24]
Read reg. 129 (0x81), static table bits [23:16]
Read reg. 130 (0x82), static table bits [15:8]
Read reg. 131 (0x83), static table bits [7:0]
Name
FID
Use FID
Override
Valid
Forwarding
Ports
MAC Address
Table 15. Format of Static MAC Table (8 Entries)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Filter VLAN ID – identifies one of the 16 active VLANs
=1, Use (FID+MAC) for static table look ups
=0, Use MAC only for static table look ups
=1, Override port setting “transmit enable=0” or
“receive enable=0” setting
=0, No override
=1, This entry is valid, the lookup result will be used
=0, This entry is not valid
These 3 bits control the forwarding port(s):
48-bit MAC Address
nd
Entry)
001, forward to port 1
010, forward to port 2
100, forward to port 3
011, forward to port 1 and port 2
110, forward to port 2 and port 3
101, forward to port 1 and port 3
111, broadcasting (excluding the
ingress port)
81
// Read static table selected
// Trigger the read operation
KSZ8873MLL/FLL/RLL
Default
0000
0
0
0
000
0x0000_0
000_0000
M9999-092309-1.2