User Parameters - 1.0 English

HDMI GT Controller LogiCORE IP Product Guide (PG334)

Document ID
PG334
Release Date
2022-04-21
Version
1.0 English

The following table shows the relationship between the fields in the Vivado® IDE and the user parameters (which can be viewed in the Tcl Console).

Table 1. User Parameters
Vivado IDE Parameter/Value 1 User Parameter/Value Default Value
Tx/Rx Protocol Selection
  • None
  • HDMI
  • HDMI 2.1
C_Tx/Rx_Protocol HDMI
Tx/Rx Max GT Line Rate Rx_Max_GT_Line_Rate
  • HDMI: 5.94
  • HDMI 2.1: 12.0
Tx/Rx Channels C_Tx/Rx_No_Of_Channels
  • HDMI: 3
  • HDMI 2.1: 4
Tx PLL Type 2
  • LCPLL: 7
  • RPLL: 8
C_TX_PLL_SELECTION LCPLL
Rx PLL Type 2

(similar to TX PLL Type)

C_RX_PLL_SELECTION RPLL
Tx Ref Clock Selection: 2
  • GT REFCLK0: 0
  • GT REFCLK1: 1
  • GT REFCLK2: 2
  • GT REFCLK3: 3
  • GT REFCLK4: 4
  • GT REFCLK5: 5
C_TX_REFCLK_SEL GT REFCLK1
Rx Ref Clock Selection 2

(similar to Tx Ref Clock Selection)

C_RX_REFCLK_SEL GT REFCLK0
Tx FRL Ref Clock Selection:
  • GT REFCLK0: 0
  • GT REFCLK1: 1
  • GT REFCLK2: 2
  • GT REFCLK3: 3
  • GT REFCLK4: 4
  • GT REFCLK5: 5
C_TX_FRL_REFCLK_SEL GT REFCLK2
Rx FRL Ref Clock Selection 2

(similar to Tx FRL Ref Clock Selection)

C_RX_FRL_REFCLK_SEL GT REFCLK2
TX REFCLK Ready Active C_Txrefclk_Rdy_Invert true
Use 4th GT Channel as TX TMDS Clock C_Use_GT_CH4_HDMI
  • HDMI: false
  • HDMI 2.1: true
NI-DRU C_NIDRU true
NI-DRU Ref Clock Selection

(similar to Tx Ref Clock Selection)

C_NIDRU_REFCLK_SEL GT REFCLK2
Number of pixels per clock Value Selection
  • 2
  • 4
C_INPUT_PIXELS_PER_CLOCK 4
Transceiver Width Value Selection
  • 2
  • 4
Transceiver_Width 4
Use ODDR/ODDRE1 for TX and RX differential TMDS clock out C_Use_Oddr_for_Tmds_Clkout 2 true
TX TMDS Clock output buffer

none, bufg 3

C_Tx_Tmds_Clk_Buffer 2 bufg

TX Video Clock output buffer

none, bufg 3

C_Tx_Video_Clk_Buffer 2 bufg
RX TMDS Clock output buffer

none, bufg 3

C_Rx_Tmds_Clk_Buffer 2 bufg
RX Video Clock output buffer

none, bufg 3

C_Rx_Video_Clk_Buffer 2 bufg
DRU Reference Clock Frequency
Valid values
  • 400.00
  • 200.00
C_DRU_Refclk_Freq_MHz 400.00
  1. Parameter values are listed in the table where the Vivado IDE parameter value differs from the user parameter value. Such values are shown in this table as indented below the associated parameter.
  2. The user parameter applies to HDMI only and can be configured through a Tcl command or through the Block Properties Window in IP integrator. Example:
    set_property -dict [list CONFIG.C_Rx_Video_Clk_Buffer {bufg}] [get_ips <ip name>]
    set_property -dict [list CONFIG.C_Use_Oddr_for_Tmds_Clkout {false}] [get_ips <ip name>]
  3. See Clocking.