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DM9006 Datasheet(PDF) 30 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) 30 Page - Davicom Semiconductor, Inc.

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DM9006
2-port Switch with Processor Interface
30
Preliminary datasheet
DM9006-13-DS-P01
September 1, 2009
6.43 Ethernet Address Control / Status Register 1 (70H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6:5
EACS
P0,RO
Status of Ethernet Address Command
00: Command OK, Entry Non-exist
a. Create an new entry when command is write
b. Do nothing when command is delete
c. Entry not found when command is search
d. Entry is invalid when command is read
01: Command OK, Entry Exist
a. Overwrite the entry when command is write
b. Delete entry when command is delete
c. Entry found when command is search
d. Entry is valid when command is read
1X: Command Error
4:3
EAI
PHY,RW
Ethernet Address Table Index
00: Unicast Address Table
01: Multicast Address Table
10: IGMP Table (Read Only)
11: Reserved
2:1
EAC
PH0,RW
Ethernet Address Command
00: Read
01: Write
10: Delete
11: Search
0
EAS
P0,RO
Ethernet Address Table Status
0: Available
1: Busy
6.44 Ethernet Address Data Register (71H~76H)
Bit
Name
Default
Description
71H
EAD0
PH0,RW
MAC Address bit 07~00
72H
EAD1
PH0,RW
MAC Address bit 15~08
73H
EAD2
PH0,RW
MAC Address bit 23~16
74H
EAD3
PH0,RW
MAC Address bit 31~24
75H
EAD4
PH0,RW
MAC Address bit 39~32
76H
EAD5
PH0,RW
MAC Address bit 47~40
6.45 Ethernet Address Control / Status Register 2 (77H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6
OVERRIDE
PH0,RW
When writing table, this bit can set the entry to override the port’s setting in the
receiving disable state of STP. When reading table, it indicates the entry is override
one or not. This bit supports unicast and multicast address table both.
0: Entry is normal one.
1: Entry is override one.


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