KSZ8993MI Micrel Inc, KSZ8993MI Datasheet - Page 67

• Manufacturer Part Number: KSZ8993MI
• Description: IC SWITCH 10/100 W/TXRX 128PQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8993MI

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Supply Voltage (min): 1.71/3.135V
• Power Dissipation: 800mW
• Supply Current: 0.1/0.19A
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2124; KSZ8993MI

Register 117 (0x75): Indirect Data Register 3
Bit
31-24
Register 118 (0x76): Indirect Data Register 2
Bit
23-16
Register 119 (0x77): Indirect Data Register 1
Bit
15-8
Register 120 (0x78): Indirect Data Register 0
Bit
7-0
Registers 121 to 127
Registers 121 to 127 are Reserved.
Static MAC Address Table
The KSZ8993M has both a static and a dynamic MAC address table. When a destination address (DA) lookup is
requested, both tables are searched to make a packet forwarding decision. When a SA lookup is requested, only
the dynamic table is searched for aging, migration and learning purposes. The static DA lookup result will have
precedence over the dynamic DA lookup result. If there is a DA match in both tables, the result from the static
table will be used. The static table can be accessed and controlled by an external processor via the SMI, SPI and
I
These entries in the static table will not be aged out by the KSZ8993M.
2
Micrel, Inc.
October 2008
C interfaces. The external processor performs all addition, modification and deletion of static table entries.
Bit
57-54
53
52
51
Name
Indirect data
Name
Indirect data
Name
Indirect data
Name
Indirect data
Name
FID
Use FID
Override
Valid
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 12. Format of Static MAC Table (8 Entries)
Description
Bit of 31-24 of indirect data
Description
Bit 23-16 of indirect data
Description
Bit 15-8 of indirect data
Description
Bit 7-0 of indirect data
Description
Filter VLAN ID, representing one of the 16 active
VLANs
= 1, use (FID+MAC) to look up in static table
= 0, use MAC only to look up in static table
= 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
67
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000_0000
Default
0000
0
0
0
M9999-020606
KSZ8993M/ML