Xilinx ChipScope Pro User Manual

ChipScope Pro Software and Cores User Guide www.xilinx.com 93
UG029 (v14.3) October 16, 2012
ChipScope Pro Analyzer Features
page 89, and “IBERT Virtex-6 FPGA GTX Transceiver Toolbar and Menu Options,”
page 92.
MGT/BERT Settings Panel
The MGT/BERT Settings panel contains a table that is made up of one or more vertical
columns and horizontal rows. Each column represents a specific active GTH transceiver.
Each row represents a specific control or status setting.
MGT Settings
The MGT Alias setting is initially set to the MGT number of the GTH transceiver, but you
can change it by selecting the field and typing in a new value.
The Tile Location setting denotes the X/Y coordinate of the GTH transceiver in the device.
The MGT Link Status indicator is displays the status of the link detection logic that is
connected to the receiver of a particular GTH transceiver channel. If the channel is linked
(green), the measured line rate is displayed. If the channel is not linked, it displays NOT
LOCKED (red).
The PLL Status indicator shows the lock status of the PLL that is a part of the GTH QUAD.
The valid states of this status indicator are LOCKED (green) or NOT LOCKED (red).
The Loopback Mode setting is used to control the loopback mode of a particular GTH
transceiver channel. The valid choices for loopback mode are:
• None: No feedback path is used.
• Near-End PCS: The circuit is wholly contained within the near-end GTH transceiver
channel. It starts at the TX fabric interface, passes through the PCS, and returns
immediately to the RX fabric interface without ever passing through the PMA side of
the GTH channel.
• Far-End PCS: The circuit originates and ends at some external channel endpoint (for
example, external test equipment or another device) but passes through part of the
GTH transceiver channel. For this GTH loopback mode, the signal comes into the RX
pins, passes through the PMA, through the PCS, back through the PMA, and returns
to the TX pins.
The QUAD Reset button resets the GTH QUAD (four transceivers) by clearing and
resetting all internal PMA and PCS circuitry as well as the related fabric interfaces.
The TX Bit Error Inject button inverts the polarity of a single bit in a single transmitted
word. The receiver endpoint of the channel that is connected to this transmitter should
detect a single bit error.
The TX Diff Output Swing combo box controls the differential swing of the transmitter.
Change the value in the combo box to change the swing.
The TX Pre-Emphasis combo box controls the amount of pre-emphasis on the transmitted
signal. Change the value in the combo box to change the emphasis.
The TX Post-Emphasis combo box controls the amount of post-emphasis on the
transmitted signal. Change the value in the combo box to change the emphasis.
The RX Equalization setting controls the internal RX equalization circuit.

Xilinx ChipScope Pro Specifications

General

Brand	Xilinx
Model	ChipScope Pro
Category	Computer Hardware
Language	English