TLK100_11 Datasheet, PDF (45/88 Pages) Texas Instruments – Industrial Temp, Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver

TLK100
www.ti.com
SLLS931B – AUGUST 2009 – REVISED DECEMBER 2009
8.1.2 Basic Mode Status Register (BMSR)
Table 8-4. Basic Mode Status Register (BMSR), address 0x0001
BIT BIT NAME DEFAULT
DESCRIPTION
15 100BASE-T4 0, RO/P 100BASE-T4 Capable:
This protocol is not available. Always 0 = Device does not perform 100BASE-T4 mode.
14 100BASE-TX 1, RO/P 100BASE-TX Full Duplex Capable:
Full Duplex
1 = Device able to perform 100BASE-TX in full duplex mode.
0 = Device not able to perform 100BASE-TX in full duplex mode.
13 100BASE-TX 1, RO/P 100BASE-TX Half Duplex Capable:
Half Duplex
1 = Device able to perform 100BASE-TX in half duplex mode.
0 = Device not able to perform 100BASE-TX in half duplex mode.
12 10BASE-T
Full Duplex
1, RO/P 10BASE-T Full Duplex Capable:
1 = Device able to perform 10BASE-T in full duplex mode.
0 = Device not able to perform 10BASE-T in full duplex mode.
11 10BASE-T
Half Duplex
1, RO/P 10BASE-T Half Duplex Capable:
1 = Device able to perform 10BASE-T in half duplex mode.
0 = Device not able to perform 10BASE-T in half duplex mode.
10: RESERVED
7
0, RO RESERVED: Write as 0, read as 0.
6 MF Preamble
Suppression
1, RO/P
Preamble suppression Capable:
1 = Device able to perform management transaction with preamble suppressed, 32-bits of preamble
needed only once after reset, invalid opcode or invalid turnaround.
0 = Device will not perform management transaction with preambles suppressed.
5 Auto-
Negotiation
Complete
0, RO
Auto-Negotiation Complete:
1 = Auto-Negotiation process complete.
0 = Auto-Negotiation process not complete (either still in process, disabled, or reset)
4 Remote Fault 0, RO/LH Remote Fault:
1 = Remote Fault condition detected (cleared on read or by reset). Fault criteria: Far End Fault
Indication or notification from Link Partner of Remote Fault.
0 = No remote fault condition detected.
3 Auto-
Negotiation
Ability
1, RO/P
Auto Negotiation Ability:
1 = Device is able to perform Auto-Negotiation.
0 = Device is not able to perform Auto-Negotiation.
2 Link Status 0, RO/LL Link Status:
1 = Valid link established (for either 10 or 100 Mb/s operation).
0 = Link not established.
1 Jabber Detect 0, RO/LH Jabber Detect: This bit only has meaning in 10 Mb/s mode.
1 = Jabber condition detected.
0 = No Jabber. condition detected.
0 Extended
Capability
1, RO/P Extended Capability:
1 = Extended register capabilities.
0 = Basic register set capabilities only.
The PHY Identifier Registers #1 and #2 together form a unique identifier for the TLK100. The Identifier
consists of a concatenation of the Organizationally Unique Identifier (OUI), the vendor's model number
and the model revision number. A PHY may return a value of zero in each of the 32 bits of the PHY
Identifier if desired. The PHY Identifier is intended to support network management. The IEEE-assigned
OUI for Texas Instruments is 080028h.
Copyright © 2009, Texas Instruments Incorporated
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