ICS1893AF Data Sheet - Release
Chapter 8 Management Register Set
8.7 Register 5: Auto-Negotiation Link Partner Ability Register
Table 8-12 lists the bits for the Auto-Negotiation Link Partner Ability Register. An STA uses this register to
determine the capabilities being advertised by the remote link partner. During the auto-negotiation process,
the ICS1893AF advertises (that is, exchanges) the capability data with its remote link partner using a
pre-defined Link Code Word. The value of the Link Control Word received from its remote link partner
establishes the value of the bits in this register.
Note:
1. For an explanation of acronyms used in Table 8-12, see Chapter 1, “Abbreviations and Acronyms”.
2. The values in this register are valid only when the auto-negotiation process is complete, as indicated by
bit 1.5 or bit 17.4.
Table 8-12. Auto-Negotiation Link Partner Ability Register (register 5 [0x05])
Bit
Definition
When Bit = 0
When Bit = 1
Ac- SF De- Hex
cess
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
CW
CW
CW
CW
fault
5.15 Next Page
Next Page disabled
Always 0
Next Page enabled
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0
0
0
0
0
5.14 Acknowledge
5.13 Remote fault
5.12 IEEE reserved
5.11 IEEE reserved
5.10 IEEE reserved
N/A
0
No faults detected
Always 0
Remote fault detected
0
N/A
0†
0†
0†
0
Always 0
N/A
Always 0
N/A
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
100Base-T4
Always 0. (Not supported.)
N/A
100Base-TX, full duplex Link partner is not capable
100Base-TX, half duplex Link partner is not capable
Link partner is capable
Link partner is capable
Link partner is capable
Link partner is capable
0
0
10Base-T, full duplex
10Base-T, half duplex
Selector Field bit S4
Selector Field bit S3
Selector Field bit S2
Selector Field bit S1
Selector Field bit S0
Link partner is not capable
Link partner is not capable
0
0
IEEE 802.3 defined. Always 0. N/A
IEEE 802.3 defined. Always 0. N/A
IEEE 802.3 defined. Always 0. N/A
IEEE 802.3 defined. Always 0. N/A
0
0
0
0
N/A
IEEE 802.3 defined.
Always 1.
0
† As per the IEEE Std 802.3u, during any write operation to any bit in this register, the STA must write the default value
to all Reserved bits.
8.7.1 Next Page (bit 5.15)
If bit 5.15 is logic:
• Zero, then the remote link partner is indicating that this is the last page being transmitted.
• One, then the remote link partner is indicating that additional pages follow.
ICS1893AF, Rev D 10/26/04
October, 2004
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
76
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
