7 Series FPGAs GTP Transceivers User Guide www.xilinx.com 49
UG482 (v1.9) December 19, 2016
Reset and Initialization
Ports and Attributes
Table 2-18 lists the ports required by the GTP transceiver‘s RX initialization process.
X-Ref Target - Figure 2-18
Figure 2-18: GTP Transceiver RX Reset State Machine Sequence
WAIT until
RXPMARESET
from High to Low
RXPMARESET
Process
WAIT until
GTRXRESET
from High to Low
RXPMARESET Done
when
RXRESETDONE High
RXPMARESET
High
GTRXRESET
High
Single
Mode
WAIT until
RXLPMRESET
from High to Low
RXLPMRESET
Process
RXLPMRESET
Done when
RXRESETDONE High
RXLPMRESET
High
Single
Mode
WAIT until
EYESCANRESET
from High to Low
EYESCANRESET
Process
EYESCANRESET
Done when
RXRESETDONE High
EYESCANRESET
High
Single
Mode
WAIT until
RXPCSRESET
from High to Low
RXPCSRESET
Process
RXPCSRESET Done
when
RXRESETDONE High
RXPCSRESET
High
Single
Mode
WAIT until
RXBUFRESET
from High to Low
RXBUFRESET
Process
RXRESETDONE
High
RXBUFRESET Done
when
RXRESETDONE High
RXBUFRESET
High
Single
Mode
Sequence Mode & RXUSERRDY
UG482_c2_118_021113
Table 2-18: RX Initialization and Reset Ports
Port Dir Clock Domain Description
GTRXRESET In Async This port is driven High and then deasserted to
start the full Channel RX reset sequence.
RXOSCALRESET In Async Reserved. The recommended value from the 7
Series FPGAs Transceivers Wizard should be
used.