dm9000a Davicom Semiconductor, Inc., dm9000a Datasheet - Page 32

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

Final
Version: DM9000A-17-DS-F01
May 10, 2006
1.5
1.4
1.3
1.2
1.1
1.0
Auto-negotiation
Auto-negotiation
Remote fault
Jabber detect
suppression
Link status
Complete
capability
Extended
ability
0, RO/LH Remote Fault
0, RO/LH Jabber Detect
0,RO/LL Link Status
1,RO/P
1,RO/P
0,RO
1 = PHY will accept management frames with preamble
suppressed
0 = PHY will not accept management frames with preamble
suppressed
Auto-negotiation Complete
1 = Auto-negotiation process completed
0 = Auto-negotiation process not completed
1 = Remote fault condition detected (cleared on read or by a
chip reset). Fault criteria and detection method is DM9000A
implementation specific. This bit will set after the RF bit in
the ANLPAR (bit 13, register address 05) is set
0 = No remote fault condition detected
Auto Configuration Ability
1 = DM9000A is able to perform auto-negotiation
0 = DM9000A is not able to perform auto-negotiation
1 = Valid link is established (for either 10Mbps or 100Mbps
operation)
0 = Link is not established
The link status bit is implemented with a latching function, so
that the occurrence of a link failure condition causes the link
status bit to be cleared and remain cleared until it is read via
the management interface
1 = Jabber condition detected
0 = No jabber
This bit is implemented with a latching function. Jabber
conditions will set this bit unless it is cleared by a read to this
register through a management interface or a DM9000A reset.
This bit works only in 10Mbps mode
Extended Capability
1 = Extended register capable
0 = Basic register capable only
Ethernet Controller with General Processor Interface
DM9000A
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