Table 39, N table 39, E 74 – Achronix Speedster22i 10G/40G/100G Ethernet User Manual
Page 74
74
UG029, September 6, 2013
4
Remote Fault
RO
Read Only Bit always set to ‘0’. The PCS does not
implement a PHY specific remote fault detection optional
function.
5
Auto
Negotiation
Complete
RO
Read On
ly Bit set to ‘1’ to indicate that the Auto
Negotiation process is completed and that the Auto
Negotiation control registers are valid. Set to ‘0’ if the
Auto Negotiation process is not completed or if Auto
Negotiation is disabled.
6
Reserved
RO
7
Reserved
RO
-
8
Extended
Status
RO
Read Only bit always set to ‘0’ to indicate that the PCS
does not implement an extended status register.
9
100Base-T2
Half Duplex
RO
Read Only bit set to ‘0’ to indicate that the PCS does not
support 100Base-T2 operation.
10
100Base-T2
Half Duplex
RO
11
10Mbps Half
Duplex
RO
Read Only bit set to ‘0’ to indicate that the PCS does not
support 10Mbps operation.
12
10Mbps Full
Duplex
RO
13
100Base-X
Half Duplex
RO
Read Only bit set to ‘0’ to indicate that the PCS does not
support 100Base-X operation.
14
100Base-X
Full Duplex
RO
15
100Base-T4
RO
Read Only bit set to ‘0’ to indicate that the PCS does not
support 100Base-T4 operation.
Table 39
– (SGMII PCS) DEVICE/PARTNER_ABILITY Register Description -
1000Base-X mode
Bit(s)
Name
Type
Description
0 to 4
Reserved
RW
-
5
FD
RW
Full Duplex Support. Set to ‘1’ when the device advertises that it
supports Full Duplex Mode of operation.
The device-ability (advertisement) register reset value sets the
bit to 1 indicating full duplex operation.
6
HD
RW
Half Duplex Support. Set to ‘1’ when the device advertises that
is supports Half Duplex Mode of operation.
7
PS1
RW
Advertise that the PCS supports pause on both transmit and
receive. PS1 (Pause) indicates pause capability. PS2
(ASM_DIR) indicates pause asymmetry.
Refer to IEEE802.3 Clause 37.2.4.2 for pause resolution.
The device-ability (advertisement) register reset value sets both
bits to 1 indicating full pause support in both directions.
8
PS2
RW
9 to
11
Reserved
RW
-
12
RF1
RW
Remote fault condition advertise:
RF1.RF2:
0.0: no error; normal operation
0.1: offline; device going offline
1.0: link failure;
1.1: autonegotiation error;
13
RF2
RW
14
ACK
RO
Acknowledgement bit used during autonegotiation. Setting of