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KS8993M Datasheet(PDF) 52 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) 52 Page - Micrel Semiconductor

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Micrel, Inc.
KS8993M/ML/MI
April 2005
52
M9999-041205
Register 6 (0x06): Global Control 4 (continued)
Bit
Name
R/W
Description
Default
3
Null VID
replacement
R/W
= 1, will replace NULL VID with port VID(12 bits)
= 0, no replacement for NULL VID
0
2-0
Broadcast
storm
protection rate
Bit [10:8]
R/W
This register along with the next register determines
how many “64 byte blocks” of packet data allowed on
an input port in a preset period. The period is 50ms
for 100BT or 500ms for 10BT. The default is 1%.
000
Register 7 (0x07): Global Control 5
Bit
Name
R/W
Description
Default
7-0
Broadcast
storm
protection
rate
(1)
Bit [7:0]
R/W
This register along with the previous register
determines how many “64 byte blocks” of packet data
are allowed on an input port in a preset period. The
period is 67ms for 100BT or 500ms for 10BT. The
default is 1%.
0x63
Note: Rate: 148,800 frames/sec * 67 ms/interval * 1% = 99 frames/interval (approx.) = 0x63
Register 8 (0x08): Global Control 6
Bit
Name
R/W
Description
Default
7-0
Factory testing
R/W
Reserved
0x4E
Register 9 (0x09): Global Control 7
Bit
Name
R/W
Description
Default
7-0
Factory testing
R/W
Reserved
0x24
Register 10 (0x0A): Global Control 8
Bit
Name
R/W
Description
Default
7-0
Factory testing
R/W
Reserved
0x24
Register 11 (0x0B): Global Control 9
Bit
Name
R/W
Description
Default
7
Reserved
Reserved
0
6
PHY
power
save
R/W
= 1, enable PHY power save mode
= 0, disable PHY power save mode
0
5
Reserved
R/W
Reserved
0
4
Reserved
RW
Testing mode, must be 0
0
3
Reserved
R/W
Reserved
1


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