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KS8993M Datasheet(PDF) 67 Page - Micrel Semiconductor

Part No. KS8993M
Description  Integrated 3-Port 10/100 Managed Integrated 3-Port 10/100 Managed
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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KS8993M Datasheet(HTML) 67 Page - Micrel Semiconductor

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Micrel, Inc.
KS8993M/ML/MI
April 2005
67
M9999-041205
Bit
Name
R/W
Description
Default
50-48
Forwarding
ports
R/W
These 3 bits control the forwarding port(s):
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)
000
47-0
MAC address
R/W
48 bits MAC address
0x0000_0000_0000
Table 12. Format of Static MAC Table (8 Entries) (continued)
Examples:
1. Static Address Table Read (Read the 2
nd Entry)
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)
2. Static Address Table Write (Write the 8
th Entry)
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)
VLAN Table
VLAN table is used to do VLAN table lookup. If 802.1Q VLAN mode is enabled (Register 5, Bit 7 = 1), this table
will be used to retrieve the VLAN information that is associated with the ingress packet. This information includes
FID (filter ID), VID (VLAN ID), and VLAN membership as described in the following table.


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