34 www.xilinx.com Spartan-6 FPGA GTP Transceiver Wizard v1.8
UG546 (v1.8) December 14, 2010
Chapter 3: Running the Wizard
Table 3-20, page 35 details the receiver PCI Express configuration options.
Table 3-19: Receiver Serial ATA Options
Options Description
RXSTATUS
Encoding Format
PCI Express
Default setting. The RXSTATUS optional port presents status information for the
PIPE interface. See the Spartan-6 FPGA GTP Transceivers User Guide for more details.
SATA The RXSTATUS optional port presents codes for the SATA COM sequence status.
Enable PCI Express Mode
Selecting this option enables certain operations specific to PCI EXPRESS, including
enabling options for PCI EXPRESS powerdown modes and PCIe
®
channel bonding.
This option should be activated whenever the transceiver is used for PCI EXPRESS.
This option is not available if RXSTATUS encoding format is set to SATA
SATA TX COM
Sequence
Bursts
Integer value between 0 and 15 indicating the number of busts to define a TX COM
sequence.
This option is not available if RXSTATUS encoding format is set to PCI EXPRESS.
SATA RX COM
Sequence
Bursts
Integer value between 0 and 7 indicating the number of Burst sequences to declare
a COM match. This value defaults to 4, which is the burst count specified in the
SATA specification for COMINIT, COMRESET, and COMWAKE.
Idles
Integer value between 0 and 7 indicating the number of Idle sequences to declare a
COM match. Each Idle is an OOB signal with a length that matches
COMINIT/COMRESET or COMWAKE. This value defaults to 3 per the SATA
specification.
This option is not available if RXSTATUS encoding format is set to PCI EXPRESS.
To Next Page
Loading...
