DM9008C View Datasheet(PDF) - Davicom Semiconductor, Inc.
Part Name
Description
MFG CO.
'DM9008C' PDF : 52 Pages View PDF
DM9008C
Ethernet Controller with General Processor Interface
8.2 Basic Mode Status Register (BMSR) - 01
Bit
Bit Name
1.15
100BASE-T4
1.14 100BASE-TX
full-duplex
1.13
Reserved
1.12
10BASE-T
full-duplex
1.11
10BASE-T
half-duplex
1.10-1.7 Reserved
1.6
MF preamble
suppression
1.5 Auto-negotiation
Complete
1.4
Remote fault
1.3 Auto-negotiation
ability
1.2
Link status
1.1
Jabber detect
Default
0,RO/P
1,RO/P
1,RO/P
1,RO/P
1,RO/P
0,RO
1,RO
0,RO
0, RO/LH
1,RO/P
0,RO/LL
0, RO/LH
Description
100BASE-T4 Capable
The DM9008C does not support 100BASE-T4 mode.
100BASE-TX Full Duplex Capable
1 = DM9008C is able to perform 100BASE-TX in full duplex mode
0 = DM9008C is not able to perform 100BASE-TX in full duplex
mode. (The DM9008C only support 100M Fiber mode).
Reserved
10BASE-T Full Duplex Capable
1 = DM9008C is able to perform 10BASE-T in full duplex mode
0 = DM9008C is not able to perform 10BASE-TX in full duplex mode
10BASE-T Half Duplex Capable
1 = DM9008C is able to perform 10BASE-T in half duplex mode
0 = DM9008C is not able to perform 10BASE-T in half duplex mode
Reserved
Read as 0, ignore on write
Frame Preamble Suppression
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
Remote Fault
1 = Remote fault condition detected (cleared on read or by a chip
reset). Fault criteria and detection method is DM9008C
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 = DM9008C is able to perform auto-negotiation
0 = DM9008C is not able to perform auto-negotiation
Link Status
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
Jabber Detect
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 DM9008C reset. This bit works only in
10Mbps mode
Preliminary
29
Version: DM9008C-13-DS-P01
January 15, 2008
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