Altera Triple Speed Ethernet MegaCore Function - Manual (Page 68)

Figure 4-18: SGMII Auto-Negotiation Activity
Link Timer
= 1.6 ms
Data
PHY SGMII PCS
Link
Synchronization
Acquired
/C/ with 0x00 ability
/C/ with dev_ability /C/ with 0x0001
/C/ with dev_ability and ACK
Send /I/ (Idle) sequence
Link
Timer
Link
Timer
3
Consecutive
/C/
3
Consecutive
/C/
with
Acknowledge
For more information, refer to CISCO Serial-GMII Specifications.
Ten-bit Interface
In PCS variations with embedded PMA, the PCS function implements a TBI to an external SERDES.
On transmit, the SERDES must serialize
tbi_tx_d[0]
, the least significant bit of the TBI output bus first
and tbi_tx_d[9] , the most significant bit of the TBI output bus last to ensure the remote node receives the
data correctly, as figure below illustrates.
Functional Description Altera Corporation
Send Feedback
UG-01008
Ten-bit Interface 4-32
2014.06.30