The following parameters affect the clocking of the GTXE2 device.
- Adv_Clk_Mode
- Configured through a check box in GUI.
This controls where the IBUFDS_GTE2 clock buffers of MGTREFCLK0 and MGTREFCLK1 are placed. When disabled, IBUFDS_GTE2 is placed within VPHY, but when enabled, IBUFDS_GTE2 should be manually instantiated at the system level. This is an ideal mode for applications requiring reference clock sharing across multiple VPHY instances.
- C_Tx_Refclk_Fabric_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the TX REFCLK input clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Dru_Refclk_Fabric_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the DRU REFCLK input clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Rx_Tmds_Clk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the RX REFCLK input clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Tx_Tmds_Clk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the TX TMDS output clock
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Tx_Video_Clk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the TX Video output clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Tx_Outclk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the TX Link output clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Rx_Outclk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the RX Link output clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Rx_Video_Clk_Buffer
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls the type of buffer to be used for driving the
fabric associated with the RX Video output clock.
Valid parameters: none, bufg, bufh, bufmr, and bufr.
- C_Use_Oddr_for_Tmds_Clkout
- Configured through a Tcl command or through the Block Properties Window in
IP integrator. This controls whether an ODDR is inserted to drive the OBUFTDS
for differential TX and RX TMDS output clocks.
Valid parameters: TRUE or FALSE.
- C_Use_GT_CH4_HDMI
- Configured through a check box in the Vivado IDE, through a Tcl command, or
through the Block Properties Window in IP integrator. This controls whether a
fourth GT channel is used in generating and transmitting the differential TX
TMDS Clock (
tx_tmds_clk_p/n
).Valid parameters: TRUE or FALSE.