Xilinx 7 Series User Manual page 135

Table 4-8: OOB Guidelines for Operating Rates above 1.5 Gb/s
PCIe Gen1
PCIe Gen2
SATA 1.5 Gb/s
SATA 3 Gb/s
SATA 6 Gb/s
PCIe Gen2
7 Series FPGAs GTP Transceivers User Guide
UG482 (v1.9) December 19, 2016
Protocol
See Figure 4-10
RX is in electrical idle.
If a scrambler has not been used, the RX electrical idle
should not be used for internal detect logic of the hold/reset
logic of the LPM, or CDR
received data to decide whether or not an electrical idle state
is present i.e., qualification using incoming data is essential
in this mode of operation.
If a scrambler is used, electrical idle may solely be used to
determine whether the RX is in electrical idle.
See Figure 4-11
RX is in electrical idle. Other methods that can be used for
this are shown in
RX electrical idle should not be used for internal detect logic
of the hold/reset logic of the LPM, or CDR
to verify received data to decide whether or not an electrical
idle state is present i.e., qualification using incoming data is
essential in this mode of operation.
Equation 4-1
Use
Figure
Figure 4-14
See
RX is in electrical idle.
RX electrical idle should not be used for internal detect logic
of the hold/reset logic of the LPM, or CDR
to verify received data to decide whether or not an electrical
idle state is present i.e., qualification using incoming data is
essential in this mode of operation.
See Figure 4-14
RX is in electrical idle.
RX electrical idle should not be used for internal detect logic
of the hold/reset logic of the LPM, or CDR
to verify received data to decide whether or not an electrical
idle state is present i.e., qualification using incoming data is
essential in this mode of operation.
See Figure 4-12
determine whether the RX is in electrical idle.
While entering and exiting electrical idle, the EIOS detection
must be used along with RXELECIDLE assertion to
determine whether the RX is in electrical idle.
RX electrical idle should not be used for internal detect logic
of the hold/reset logic of the LPM, or CDR
to verify received data to decide whether or not an electrical
idle state is present i.e., qualification using incoming data is
essential in this mode of operation.
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RX Out-of-Band Signaling
Operation
for the algorithm to determine whether the
(1)
. The user needs to verify
for the algorithm to determine whether the
Figure 4-12 and Figure
to derive the appropriate OOB clock (see
4-9).
for the algorithm to determine whether the
for the algorithm to determine whether the
and Figure 4-13 for the algorithm to
4-13.
(1)
. The user needs
(1)
. The user needs
(1)
. The user needs
(1)
. The user needs
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