dm9000bi Davicom Semiconductor, Inc., dm9000bi Datasheet - Page 33

• Manufacturer Part Number: dm9000bi
• Description: Industrial-grade Ethernet Controller With General Processor Interface
• Manufacturer: Davicom Semiconductor, Inc.

8.8 DAVICOM Specified Configuration Register (DSCR) - 16
Preliminary
Version: DM9000BI-13-DS-P02
January 17, 2008
16.15
16.14
16.13
16.12
16.10
16.11
16.9
16.8
16.7
16.6
16.5
16.4
6.2
6.1
6.0
Bit
COLLED_CTL
LP_AN_ABLE
RPDCTR-EN
SPLED_CTL
F_LINK_100
BP_ADPOK
BP_ALIGN
PAGE_RX
NP_ABLE
Bit Name
BP_4B5B
Reserved
Reserved
Reserved
BP_SCR
TX/FX
0, RO/LH
Default
0,RO/P
0, RW
0, RW
0, RW
1, RW
0, RW
0, RW
0, RW
0, RW
1, RW
0, RO
0, RO
0, RW
0,RW
Industrial-grade Ethernet Controller with General Processor Interface
Local Device Next Page Able
NP_ABLE = 1: DM9000BI, next page available
NP_ABLE = 0: DM9000BI, no next page
DM9000BI does not support this function, so this bit is always 0
New Page Received
A new link code word page received. This bit will be automatically
cleared when the register (register 6) is read by management
Link Partner Auto-negotiation Able
A “1” in this bit indicates that the link partner supports
Auto-negotiation
Bypass 4B5B Encoding and 5B4B Decoding
1 = 4B5B encoder and 5B4B decoder function bypassed
0 = Normal 4B5B and 5B4B operation
Bypass Scrambler/Descrambler Function
1 = Scrambler and descrambler function bypassed
0 = Normal scrambler and descrambler operation
Bypass Symbol Alignment Function
1 = Receive functions (descrambler, symbol alignment and symbol
decoding functions) bypassed. Transmit functions (symbol encoder
and scrambler) bypassed
0 = Normal operation
BYPASS ADPOK
Force signal detector (SD) active. This register is for debug only,
not release to customer
1=Forced SD is OK,
0=Normal operation
Reserved
Force to 0 in application.
100BASE-TX/FX Mode Control
1 = 100BASE-TX operation
0 = 100BASE-FX operation
Reserved
Reserved
Force to 0 in application.
Force Good Link in 100Mbps
0 = Normal 100Mbps operation
1 = Force 100Mbps good link status
This bit is useful for diagnostic purposes
Reserved
Force to 0 in application.
Reserved
Force to 0 in application.
Reduced Power Down Control Enable
This bit is used to enable automatic reduced power down
0 = Disable automatic reduced power down
1 = Enable automatic reduced power down
Description
DM9000BI
33