AM79C901AJCT AMD [Advanced Micro Devices], AM79C901AJCT Datasheet - Page 45

• Manufacturer Part Number: AM79C901AJCT
• Description: HomePHY Single-Chip 1/10 Mbps Home Networking PHY
• Manufacturer: AMD [Advanced Micro Devices]

HPR1: HomePNA PHY Status Register (Register 1)
Bits
10:7
15
14
13
12
11
6
5
4
3
2
1
0
100BASE-T4
100BASE-X Full-Duplex
100BASE-X Half-Duplex
10 Mbps Full-Duplex
10 Mbps Half-Duplex
Reserved
Management Frame Preamble
Suppression
Auto-Negotiation Complete
Remote Fault
Auto-Negotiation Ability
Link Status
Jabber Detect
Extended Capability
Name
Table 18. HPR1: HomePNA PHY Status Register (Register 1)
0 = PHY not able to perform 100BASE-T4
P R E L I M I N A R Y
0 = PHY not able to perform Full-Duplex
100BASE-X
0 = PHY not able to perform Half-Duplex
100BASE-X
0 = PHY not able to perform 10 Mbps in Full-Duplex
1 = PHY able to perform 10 Mbps in Half-Duplex
Reads will produce undefined results
1 = PHY will accept management frames with
Preamble suppressed
0 = PHY will not accept management frames with
Preamble suppressed
1 = Auto-Negotiation completed
0 = Auto-Negotiation not completed
1 = Remote fault detected
0 = Normal operation
1 = PHY is able to perform Auto-Negotiation
0 = PHY is not able to perform Auto-Negotiation
1 = Link is up
0 = Link is down
This bit will be RESET (latched low and re-enabled
on Read).
1 = Jabber condition detected
0 = Normal operation
1 = Extended Register capability
0 = Basic Register Set capability
Am79C901A
Description
Read/Write
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
Value
(hex)
X
0
0
0
0
1
1
0
0
0
0
0
1
45