KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 79

• Manufacturer Part Number: KS8993F A5
• Manufacturer: Micrel Inc

Specifications of KS8993F A5

• 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): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

KS8993F
Examples:
1) Static Address Table Read (read the 2
2) Static Address Table Write (write the 8
August 26, 2004
Bit
57-54
53
52
51
50-48
47-0
Write to reg. 110 with 0x10 (read static table selected)
Write to reg. 111 with 0x01 (trigger the read operation)
Then
Read reg. 113 (57-56)
Read reg. 114 (55-48)
Read reg. 115 (47-40)
Read reg. 116 (39-32)
Read reg. 117 (31-24)
Read reg. 118 (23-16)
Read reg. 119 (15-8)
Read reg. 120 (7-0)
Write reg. 113 (57-56)
Write reg. 114 (55-48)
Write reg. 115 (47-40)
Write reg. 116 (39-32)
Write reg. 117 (31-24)
Write reg. 118 (23-16)
Write reg. 119 (15-8)
Write reg. 120 (7-0)
Write to reg. 110 with 0x00 (write static table selected)
Write to reg. 111 with 0x07 (trigger the write operation)
Name
FID
Use FID
Override
Valid
Forwarding
ports
MAC address
Table 10: Format of Static MAC Table (8 entries)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
nd
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”
setting.
= 0, no override
= 1, this entry is valid, the look up result will
= 0, this entry is not valid
These 3 bits control the forwarding port(s):
48 bits MAC Address
th
entry)
entry)
be used
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)
- 79 -
or “receive enable=0”
Default
0000
0
0
0
000
0x0000_0000_000
0
Revision 1.0
Micrel