Rev. 1.43
User's
Guide
73
PHY register address 4:
Auto-Negotiation Advertisement Register
Bit
NAME
DESCRIPTION
R/W
DEFAULT
15
Next Page
1 = additional link code word pages
0 = no additional pages
RO 0
14
Acknowledge
1 = received ANeg Word recognized
0 = not recognized
RO 0
13
Remote fault
1 = ANeg remote fault detected
0 = no remote fault detected
R/W 0
12:10 Reserved
Reserved
R/W
0
9
T4
1 = capable of 100Base-T4
0 = not capable
R/W 0
8
TX_FDX
1 = capable of 100Base-TX Full-Duplex
0 = not capable
R/W 1
7
TX_HDX
1 = capable of 100Base-TX Half-Duplex
0 = not capable
R/W 1
6
10_FDX
1 = capable of 10Base-T Full-Duplex
0 = not capable
R/W 1
5
10_HDX
1 = capable of 10Base-T Half-Duplex
0 = not capable
R/W 1
4:1 Reserved
Reserved
RO
0
0
CSMA 802.3 capable
1 = capable of 802.3 CSMA operation
0 = not capable
RO 1
PHY register address 17:
Structure and Bit definition
Bit
NAME
DESCRIPTION
R/W
DEFAULT
15, 14
Programmable LED output 3
11 = normal
10 = LED blink
01 = LED on
00 = LED off
R/W 11
13,12
Programmable LED output 2
11 = normal
10 = LED blink
01 = LED on
00 = LED off
R/W 11
11, 10
Programmable LED output 1
11 = normal
10 = LED blink
01 = LED on
00 = LED off
R/W 11
9,8
Programmable LED output 0
11 = normal
10 = LED blink
01 = LED on
00 = LED off
R/W 11
7,6
LED function
See table 'LED function' below
R/W
00
5
Auto-polarity disable
1 = MII interface disabled
0 = normal operation
R/W 0
4
Jabber disable
1 = restart auto negotiation
0 = normal
R/W 0
3
Multiple register access
1 = Full duplex mode
0 = Half duplex mode
R/W 0
2
Interrupt scheme
1 = enable COL signal test
0 = normal
R/W 0
1
R/J configuration
1 = RX_EN/nJAM pin is nJAM
0 = RX_EN/nJAM pin is RX_EN
R/W 0
0
Reserved
Reserved, must be 0
R/W
0
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