Xilinx ChipScope Pro

ChipScope Pro Software and Cores User Guide www.xilinx.com 111
UG029 (v14.3) October 16, 2012
ChipScope Pro Analyzer Features
The TX Polarity Invert setting controls the polarity of the data sent out of the TX pins of the
GTH transceiver channel. To change the polarity of the TX side of the GTH transceiver,
check the TX Polarity Invert box.
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-Cursor and TX Post-Cursor combo boxes control the amount of pre-emphasis
on the transmitted signal. Change the value in the combo boxes to change the pre-
emphasis settings.
The RX Polarity Invert setting controls the polarity of the data received from the RX pins of
the GTH transceiver channel. To change the polarity of the RX side of the GTH transceiver,
check the RX Polarity Invert box.
The RX Termination Mode and RX Termination Voltage settings are used to control the
receiver termination characteristics of the GTH channel. Use the RX Termination Mode
combo box to control the mode for the termination voltage. Use the RX Termination
Voltage combo box to control the common mode when RX Termination Mode is set to
Programmable.
BERT Settings
The TX/RX Data Pattern settings are used to select the data pattern that is used by the
transmit pattern generator and receive pattern checker, respectively. These patterns
include PRBS 7, 15, 23, and 31, and Clk 2x and 10x.
The BERT Settings also include RX Received Bit Counter, RX Bit Error Count, and Bit Error
Ratio (BER) indicator. The BERT Reset button is used to reset these counters.
Clocking Settings
The TXUSRCLK Freq (MHz) indicator shows the approximate clocking frequency (in
MHz) of the TXUSRCLK port of the GTH transceiver. The accuracy of this status indicator
depends on the frequency of the system clock that was specified at compile time.
The TXUSRCLK2 Freq (MHz) indicator shows the approximate clocking frequency (in
MHz) of the TXUSRCLK2 port of the GTH transceiver. The accuracy of this status indicator
depends on the frequency of the system clock that was specified at compile time.
DRP Settings Panel
The DRP 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 DRP attribute or address.
When the radio button at the bottom of the panel is set to View By Attribute Name, all the
DRP attributes display in alphabetical order. The Radix combo box lets you choose
between Hex (hexadecimal) and Bin (binary). To change a value, click in the text field for
the value, type in a new value, and press Enter. The new value is set immediately in the
MGT.
When the radio button at the bottom of the panel is set to View By Address, the raw
addresses are displayed in numerical order with their contents. The Radix combo box lets
you choose between Hex (hexadecimal) and Bin (binary). To change a value, just click in