Achronix Speedster22i 10G/40G/100G Ethernet User Manual
Page 72
72
UG029, September 6, 2013
5
314
PARTNER_ABILIT
Y
RO
Received ability from remote device after
auto-negotiation has completed.
Depending on the mode of operation, the
bit definitions are shown in Table 39
(SGMII PCS)
DEVICE/PARTNER_ABILITY Register
Description - 1000Base-X mode on page
74 and Table 39
– (SGMII PCS)
DEVICE/PARTNER_ABILITY Register
Description - SGMII Mode on page 74
0
6
318
AN_EXPANSION
ROR
reserved
Bit 0: real-time page receive indication
Bit 1: latched high page received
indication (cleared on read)
0
7
31c
DEVICE_NP
RO
The PCS does not support next page
auto-negotiation.
0
8
320
PARTNER_NP
RO
The PCS does not support next page
autonegotiation.
0
9:14
324:3
38
RO
reserved
0
15
33c
EXTENDED_STAT
US
RO
The PCS does not support extended
status, always 0.
16
340
reserved
RO
17
344
reserved
RO
18
348
LINK_TIMER_lo
RW
Auto Negotiation Link Timer (RW). Set the
Link Timer value from 0 to 16ms in 8ns
steps (125MHz clock periods). The reset
value sets the Link Timer to 10ms
(1250000).
Bits 15:0 are stored in the _lo register.
Bits 20:16 are stored in the _hi register
bits 4:0.
Unused bits are reserved and set to read
only value 0.
Bit 0 is unused (i.e. value in steps of 2
only) and always 0.
0x12d0
19
34c
LINK_TIMER_hi
RW
Bits 20:16 of the timer value are stored in
bits 4:0.
0x13
20
350
IF_MODE
RW
SGMII enable and mode configuration.
Used to set the PCS interface operation.
See Table 42
– (SGMII PCS) IF_MODE
Register Description on page 76
0
21:31
354:3
7C
reserved
RO
unused