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DM9006 Datasheet(PDF) 28 Page - Davicom Semiconductor, Inc.

Part No. DM9006
Description  10/100 Mbps 2-port Ethernet Switch Controller with General Processor Interface
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Maker  DAVICOM [Davicom Semiconductor, Inc.]
Homepage  http://www.davicom.com.tw
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DM9006 Datasheet(HTML) 28 Page - Davicom Semiconductor, Inc.

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DM9006
2-port Switch with Processor Interface
28
Preliminary datasheet
DM9006-13-DS-P01
September 1, 2009
6.35 Per Port Block Unicast Ports Control Register (68H)
Bit
Name
Default
Description
7:4
RESERVED
PH0,RW Reserved
3:0
BLK_UP
PH0,RW Ports of Unicast Packet Be Blocked
The received unicast packets are not forward to the assigned ports.
Note: that the assigned port definition: bit 0 for port 0, bit 1 for port 1, bit 2
reserved, and bit 3 for processor port.
6.36 Per Port Block Multicast Ports Control Register (69H)
Bit
Name
Default
Description
7:4
RESERVED
PH0,RW Reserved
3:0
BLK_MP
PH0,RW Ports of Multicast Packet Be Blocked
The received multicast packets are not forward to the assigned ports.
6.37 Per Port Block Broadcast Ports Control Register (6AH)
Bit
Name
Default
Description
7:4
RESERVED
PH0,RW Reserved
3:0
BLK_BP
PH0,RW Ports of Broadcast Packet Be Blocked
The received broadcast packets are not forward to the assigned ports.
6.38 Per Port Block Unknown Ports Control Register (6BH)
Bit
Name
Default
Description
7:4
RESERVED
PH0,RW Reserved
3:0
BLK_UKP
PH0,RW Ports of Unknown Packet Be Blocked
The packets with DA field not found in address table are not forward to
the assigned ports.
6.39 Per Port Security & STP Register (6CH)
Bit
Name
Default
Description
7:6
RESERVED
0,RO
Reserved
5:4
STPS
PH0,RW
Spanning Tree Port State
There are 4 port state for supporting Spanning Tree Protocol
00: Forwarding State, The port transmits and receives packets normally &
learning is enabled.
01: Disabled State, The port will not transmit and receive any packets & learning
is disabled.
10: Learning State, The port will only forward the packets that are to and from
uP port (span packets) & leaning is enabled.
11: Blocking/Listening State, The port will only forward the packets that are to
and from uP port (span packets) & leaning is disabled.
3
RESERVED
0,RO
Reserved
2
PS_UNK
PHE0,RW Unknown source address handling when port security is enabled
0: Discard Unknown (Default)
1: Unknown to uP Port


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