dm9000a Davicom Semiconductor, Inc., dm9000a Datasheet - Page 36

• Manufacturer Part Number: dm9000a
• Description: Ethernet Controller With General Processor Interface
• Manufacturer: Davicom Semiconductor, Inc.

8.7 Auto-negotiation Expansion Register (ANER)- 06
8.8 DAVICOM Specified Configuration Register (DSCR) - 16
Final
Version: DM9000A-17-DS-F01
May 10, 2006
6.15-6.5
5.4-5.0
16.15
16.14
5.6
5.5
Bit
6.4
6.3
6.2
6.1
6.0
Bit
LP_AN_ABL
LP_NP_ABL
PAGE_RX
NP_ABLE
Bit Name
Bit Name
BP_4B5B
Reserved
10_HDX
BP_SCR
10_FDX
Selector
PDF
E
E
0, RO/LH
0, RO/LH
<00000>,
Default
Default
0,RO/P
0, RW
0, RO
0, RO
0, RO
0, RO
0, RO
0,RW
RO
partner
10BASE-T Full Duplex Support
1 = 10BASE-T full duplex is supported by the link partner
0 = 10BASE-T full duplex is not supported by the link
partner
10BASE-T Support
1 = 10BASE-T half duplex is supported by the link partner
0 = 10BASE-T half duplex is not supported by the link
partner
Protocol Selection Bits
Link partner’s binary encoded protocol selector
Reserved
Read as 0, ignore on write
Local Device Parallel Detection Fault
PDF = 1: A fault detected via parallel detection function.
PDF = 0: No fault detected via parallel detection function
Link Partner Next Page Able
LP_NP_ABLE = 1: Link partner, next page available
LP_NP_ABLE = 0: Link partner, no next page
Local Device Next Page Able
NP_ABLE = 1: DM9000A, next page available
NP_ABLE = 0: DM9000A, no next page
DM9000A 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
Ethernet Controller with General Processor Interface
Description
Description
DM9000A
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