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DM9006 Datasheet(PDF) 51 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) 51 Page - Davicom Semiconductor, Inc.

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DM9006
2-port Switch with Processor Interface
Preliminary datasheet
51
DM9006-13-DS-P01
September 1, 2009
8.10 10BASE-T Configuration/Status (10BTCSR) – 12H
Bit
Bit Name
Default
Description
15
Reserved
0, RO
Reserved
Read as 0, ignore on write
14
LP_EN
1, RW
Link Pulse Enable
1 = Transmission of link pulses enabled
0 = Link pulses disabled, good link condition forced
This bit is valid only in 10Mbps operation
13
HBE
1,RW
Heartbeat Enable
1 = Heartbeat function enabled
0 = Heartbeat function disabled
When the DM9006 is configured for full duplex operation, this bit will
be ignored (the collision/heartbeat function is invalid in full duplex
mode)
12
SQUELCH
1, RW
Squelch Enable
1 = Normal squelch
0 = Low squelch
11
JABEN
1, RW
Jabber Enable
Enables or disables the Jabber function when the DM9006 is in
10BASE-T full duplex or 10BASE-T transceiver Loopback mode
1 = Jabber function enabled
0 = Jabber function disabled
10
SERIAL
0, RW
10M Serial Mode (valid in PHY test mode)
Force to 0, in application.
9-1
Reserved
0, RO
Reserved
Read as 0, ignore on write
0
POLR
0, RO
Polarity Reversed
When this bit is set to 1, it indicates that the 10Mbps cable polarity is
reversed. This bit is automatically set and cleared by 10BASE-T
module
8.11 Power Down Control Register (PWDOR) – 13H
Bit
Bit Name
Default
Description
15-9
Reserved
0, RO
Reserved
Read as 0, ignore on write
8
PD10DRV
0, RW
Vendor power down control test
7
PD100DL
0, RW
Vendor power down control test
6
PDchip
0, RW
Vendor power down control test
5
PDcrm
0, RW
Vendor power down control test
4
PDaeq
0, RW
Vendor power down control test
3
PDdrv
0, RW
Vendor power down control test
2
PDedi
0, RW
Vendor power down control test
1
PDedo
0, RW
Vendor power down control test
0
PD10
0, RW
Vendor power down control test
*
When selected, the power down value is control by Register 20.0


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