Rx Comma Alignment - Xilinx LogiCORE IP Spartan-6 Getting Started Manual

Table 3-9: Optional Ports (Cont'd)
Option
Parallel clock signal generated by the GTP transceiver. This option is required when selected
TXOUTCLK as an input to either TXUSRCLK or RXUSRCLK. This option is not available when the TX
Phase Alignment circuit is used.
TXRESET Active-High reset signal for the transmitter PCS logic.
Two-bit signal monitors the status of the TX elastic buffer. This option is not available when
TXBUFSTATUS
the TX Phase Alignment circuit is used.
Select this option to have the REFCLKOUT signal available to the application. Any options
REFCLKOUT selected on the following Wizard pages that require this signal causes the forced selection of
this option.

RX Comma Alignment

The RX Comma Alignment screen (page 5) of the Wizard
configure the RX comma detection and alignment logic. The settings are detailed in
Table 3-10, page
X-Ref Target - Figure 3-9
Spartan-6 FPGA GTP Transceiver Wizard v1.8
UG546 (v1.8) December 14, 2010
Description
28.
Figure 3-9: RX Comma Alignment - Page 5
www.xilinx.com
Generating the Core
(Figure 3-9) allows you to
27