HDMI Intel® Cyclone® 10 GX FGPA IP Design Example User Guide

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ID 683309
Date 1/26/2024
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Document Table of Contents
Document Table of Contents x
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Cyclone® 10 GX Devices 2. HDMI Design Example 3. HDMI Intel® Cyclone® 10 GX FPGA IP Design Example User Guide Archives 4. Revision History for HDMI Intel® Cyclone® 10 GX FPGA IP Design Example User Guide
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Cyclone® 10 GX Devices x
1.1. Directory Structure 1.2. Hardware and Software Requirements 1.3. Generating the Design 1.4. Simulating the Design 1.5. Compiling and Testing the Design 1.6. Design Limitation 1.7. HDMI Intel® FPGA IP Design Example Parameters
2. HDMI Design Example x
2.1. HDMI RX-TX Retransmit Design Block Diagram 2.2. Design Components 2.3. Dynamic Range and Mastering (HDR) InfoFrame Insertion and Filtering 2.4. Clocking Scheme 2.5. Interface Signals 2.6. Design RTL Parameters 2.7. Hardware Setup 2.8. Simulation Testbench 2.9. Upgrading Your Design
1. HDMI Intel® FPGA IP Design Example Quick Start Guide for Intel® Cyclone® 10 GX Devices
2. HDMI Design Example
3. HDMI Intel® Cyclone® 10 GX FPGA IP Design Example User Guide Archives
4. Revision History for HDMI Intel® Cyclone® 10 GX FPGA IP Design Example User Guide

2.5. Interface Signals

The tables list the signals for the HDMI Intel® FPGA IP design example.
Table 15.  Top-Level Signals
Signal Direction Width Description
On-board Oscillator Signal
c10_refclk2_p

Input

 1

100 MHz free running clock for core reference clock.

usb_refclk_p Input 1

125 MHz free running clock for transceiver reference clock; this clock can be of any frequency.

User Push Buttons and LEDs
user_pb

Input

 1

Push button to control the HDMI Intel® FPGA IP design functionality

user_dipsw

Input

 1

DIP switch to send the DVI or HDMI encoded signal.

user_led_g

Output

 4

Green LED display

HDMI FMC Daughter Card Pins on FMC Port
fmc_gbtclk_m2c_p_0

Input

1

 HDMI RX TMDS clock
fmc_dp_m2c_p

Input

 3

HDMI RX red, green, and blue data channels

fmc_dp_c2m_p

Output

 4

HDMI TX clock, red, green, and blue data channels

fmc_la_rx_p_9

Input

 1

HDMI RX +5V power detect

fmc_la_rx_p_8

Inout

 1 HDMI RX hot plug detect
fmc_la_rx_n_8

Inout

 1

HDMI RX I2C SDA for DDC and SCDC

fmc_la_tx_p_10

Input

 1 HDMI RX I2C SCL for DDC and SCDC
fmc_la_tx_p_12

Input

 1 HDMI TX hot plug detect
fmc_la_tx_n_12

Inout

 1 HDMI I2C SDA for DDC and SCDC
fmc_la_rx_p_10

Inout

 1

HDMI I2C SCL for DDC and SCDC

fmc_la_tx_p_11 Inout 1 HDMI I2C SDA for redriver control
fmc_la_rx_n_9 Inout 1

HDMI I2C SCL for redriver control

Table 16.  HDMI RX Top-Level Signals
Signal Direction Width Description
Clock and Reset Signals
mgmt_clk

Input

 1

System clock input (100 MHz)

fr_clk Input 1 Free running clock (625 MHz) for primary transceiver reference clock. This clock is required for transceiver calibration during power-up state.
reset

Input

 1

System reset input

reset_xcvr_powerup Input 1 Transceiver reset input. This signal is asserted during the reference clocks switching process (from free running clock to TMDS clock) in power-up state.
tmds_clk_in

Input

 1

HDMI RX TMDS clock

i2c_clk

Input

 1

Clock input for DDC and SCDC interface

vid_clk_out

Output

 1

Video clock output

ls_clk_out

Output

 8

Link speed clock output

sys_init

Output

 1

System initialization to reset the system upon power-up

RX Transceiver and IOPLL Signals
rx_serial_data

Input

 3

HDMI serial data to the RX Native PHY

gxb_rx_ready

Output

 1

Indicates RX Native PHY is ready

gxb_rx_cal_busy_out

Output

 3

RX Native PHY calibration busy to the transceiver arbiter

gxb_rx_cal_busy_in

Input

 3

Calibration busy signal from the transceiver arbiter to the RX Native PHY

iopll_locked

Output

 1

Indicate IOPLL is locked

gxb_reconfig_write

Input

 3

Transceiver reconfiguration Avalon-MM interface from the RX Native PHY to the transceiver arbiter

gxb_reconfig_read

Input

 3
gxb_reconfig_address

Input

30
gxb_reconfig_writedata

Input

 96
gxb_reconfig_readdata

Output

 96
gxb_reconfig_waitrequest

Output

 3
RX Reconfiguration Management
rx_reconfig_en

Output

 1

RX Reconfiguration enables signal

measure

Output

 24

HDMI RX TMDS clock frequency measurement (in 10 ms)

measure_valid

Output

 1

Indicates the measure signal is valid

os

Output

 1
Oversampling factor:
  • 0: No oversampling
  • 1: 5× oversampling
reconfig_mgmt_write

Output

 1

RX reconfiguration management Avalon memory-mapped interface to transceiver arbiter

reconfig_mgmt_read

Output

 1
reconfig_mgmt_address

Output

12
reconfig_mgmt_writedata

Output

 32
reconfig_mgmt_readdata

Input

 32
reconfig_mgmt_waitrequest

Input

 1
HDMI RX Core Signals
TMDS_Bit_clock_Ratio

Output

 1

SCDC register interfaces

audio_de

Output

 1

HDMI RX core audio interfaces

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

audio_data

Output

 256
audio_info_ai

Output

 48
audio_N

Output

 20
audio_CTS

Output

 20
audio_metadata

Output

 165
audio_format

Output

 5
aux_pkt_data

Output

 72

HDMI RX core auxiliary interfaces

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

aux_pkt_addr

Output

 6
aux_pkt_wr

Output

 1
aux_data

Output

 72
aux_sop

Output

 1
aux_eop

Output

 1
aux_valid

Output

 1
aux_error

Output

 1
gcp

Output

 6

HDMI RX core sideband signals

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

info_avi

Output

 112
info_vsi

Output

 61
colordepth_mgmt_sync

Output

 2
vid_data

Output

 N*48

HDMI RX core video ports

Note: N = symbols per clock

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

vid_vsync

Output

 N
vid_hsync

Output

 N
vid_de

Output

 N
mode

Output

 1

HDMI RX core control and status ports

Note: N = symbols per clock

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

ctrl

Output

 N*6
locked

Output

 3
vid_lock

Output

 1
in_5v_power

Input

 1

HDMI RX 5V detect and hotplug detect

Refer to the Sink Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

hdmi_rx_hpd_n

Inout

 1
I2C Signals
hdmi_rx_i2c_sda

Inout

 1

HDMI RX DDC and SCDC interface

hdmi_rx_i2c_scl

Inout

 1
RX EDID RAM Signals
edid_ram_access

Input

 1

HDMI RX EDID RAM access interface.

Assert edid_ram_access when you want to write or read from the EDID RAM, else this signal should be kept low.

edid_ram_address

Input

 8
edid_ram_write

Input

 1
edid_ram_read

Input

 1
edid_ram_readdata

Output

 8
edid_ram_writedata

Input

 8
edid_ram_waitrequest

Output

 1
Table 17.  HDMI TX Top-Level Signals
Signal Direction Width Description
Clock and Reset Signals
mgmt_clk

Input

 1

System clock input (100 MHz)

fr_clk Input 1 Free running clock (625 MHz) for primary transceiver reference clock. This clock is required for transceiver calibration during power-up state.
reset

Input

 1

System reset input

hdmi_clk_in

Input

 1

Reference clock to TX IOPLL and TX PLL. The clock frequency is the same as the TMDS clock frequency.

vid_clk_out

Output

 1

Video clock output

ls_clk_out

Output

 8

Link speed clock output

sys_init

Output

 1

System initialization to reset the system upon power-up

reset_xcvr

Input

 1

Reset to TX transceiver

reset_pll

Input

 1 Reset to IOPLL and TX PLL
reset_pll_reconfig

Output

 1

Reset to PLL reconfiguration

TX Transceiver and IOPLL Signals
tx_serial_data

Output

 4

HDMI serial data from the TX Native PHY

gxb_tx_ready

Output

 1

Indicates TX Native PHY is ready

gxb_tx_cal_busy_out

Output

 4

TX Native PHY calibration busy signal to the transceiver arbiter

gxb_tx_cal_busy_in

Input

 4

Calibration busy signal from the transceiver arbiter to the TX Native PHY

iopll_locked

Output

 1

Indicate IOPLL is locked

txpll_locked

Output

 1

Indicate TX PLL is locked

gxb_reconfig_write

Input

 4

Transceiver reconfiguration Avalon memory-mapped interface from the TX Native PHY to the transceiver arbiter

gxb_reconfig_read

Input

 4
gxb_reconfig_address

Input

40
gxb_reconfig_writedata

Input

 128
gxb_reconfig_readdata

Output

 128
gxb_reconfig_waitrequest

Output

 4
TX IOPLL and TX PLL Reconfiguration Signals
pll_reconfig_write/tx_pll_reconfig_write

Input

 1

TX IOPLL/TX PLL reconfiguration Avalon memory-mapped interfaces

pll_reconfig_read/tx_pll_reconfig_read

Input

 1
pll_reconfig_address/tx_pll_reconfig_address

Input

 10
pll_reconfig_writedata/tx_pll_reconfig_writedata

Input

 32
pll_reconfig_readdata/tx_pll_reconfig_readdata

Output

 32
pll_reconfig_waitrequest/tx_pll_reconfig_waitrequest

Output

 1
os

Input

 2
Oversampling factor:
  • 0: No oversampling
  • 1: 3× oversampling
  • 2: 4× oversampling
  • 3: 5× oversampling
measure

Input

 24

Indicates the TMDS clock frequency of the transmitting video resolution.

HDMI TX Core Signals
ctrl

Input

 6*N

HDMI TX core control interfaces

Note: N = Symbols per clock

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

mode

Input

 1
TMDS_Bit_clock_Ratio

Input

 1

SCDC register interfaces

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

Scrambler_Enable

Input

 1
audio_de

Input

 1

HDMI TX core audio interfaces

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

audio_mute Input 1
audio_data

Input

 256
audio_info_ai

Input

 49
audio_N

Input

 22
audio_CTS

Input

 22
audio_metadata

Input

 166
audio_format

Input

 5
i2c_master_write

Input

 1

TX I2C master Avalon® memory-mapped interface to I2C master inside the TX core.

Note: These signals are available only when you turn on the Include I2C parameter.
i2c_master_read

Input

 1
i2c_master_address

Input

 4
i2c_master_writedata

Input

 32
i2c_master_readdata

Output

 32
aux_ready

Output

 1

HDMI TX core auxiliary interfaces

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

aux_data

Input

 72
aux_sop

Input

 1
aux_eop

Input

 1
aux_valid

Input

 1
gcp

Input

 6

HDMI TX core sideband signals

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

info_avi

Input

 113
info_vsi

Input

 62
vid_data

Input

 N*48

HDMI TX core video ports

Note: N = symbols per clock

Refer to the Source Interfaces section in the HDMI Intel® FPGA IP User Guide for more information.

vid_vsync

Input

 N
vid_hsync

Input

 N
vid_de

Input

 N
I2C and Hot Plug Detect Signals
nios_tx_i2c_sda_in
Note: When you turn on the Include I2C parameter, this signal is placed in the TX core and will not be visible at this level.

Output

 1

I2C Master Avalon® memory-mapped interfaces

nios_tx_i2c_scl_in
Note: When you turn on the Include I2C parameter, this signal is placed in the TX core and will not be visible at this level.

Output

 1
nios_tx_i2c_sda_oe
Note: When you turn on the Include I2C parameter, this signal is placed in the TX core and will not be visible at this level.

Input

 1
nios_tx_i2c_scl_oe
Note: When you turn on the Include I2C parameter, this signal is placed in the TX core and will not be visible at this level.

Input

 1
nios_ti_i2c_sda_in

Output

 1
nios_ti_i2c_scl_in

Output

 1
nios_ti_i2c_sda_oe

Input

 1
nios_ti_i2c_scl_oe Input 1
hdmi_tx_i2c_sda

Inout

 1 HDMI TX DDC and SCDC interfaces
hdmi_tx_i2c_scl

Inout

 1
hdmi_ti_i2c_sda Inout 1 I2C interface for Bitec Daughter Card Revision 11 TI181 Control
hdmi_ti_i2c_scl Inout 1
hdmi_tx_hpd_n

Input

 1 HDMI TX hotplug detect interfaces
tx_hpd_ack

Input

 1
tx_hpd_req

Output

 1
Table 18.  Transceiver Arbiter Signals
Signal Direction Width Description
clk

Input

 1

Reconfiguration clock. This clock must share the same clock with the reconfiguration management blocks.

reset

Input

 1

Reset signal. This reset must share the same reset with the reconfiguration management blocks.

rx_rcfg_en

Input

 1

RX reconfiguration enable signal

tx_rcfg_en

Input

 1

TX reconfiguration enable signal

rx_rcfg_ch

Input

 2

Indicates which channel to be reconfigured on the RX core. This signal must always remain asserted.

tx_rcfg_ch

Input

 2

Indicates which channel to be reconfigured on the TX core. This signal must always remain asserted.

rx_reconfig_mgmt_write

Input

 1

Reconfiguration Avalon-MM interfaces from the RX reconfiguration management

rx_reconfig_mgmt_read

Input

 1
rx_reconfig_mgmt_address

Input

 10
rx_reconfig_mgmt_writedata

Input

 32
rx_reconfig_mgmt_readdata

Output

 32
rx_reconfig_mgmt_waitrequest

Output

 1
tx_reconfig_mgmt_write

Input

 1

Reconfiguration Avalon-MM interfaces from the TX reconfiguration management

tx_reconfig_mgmt_read

Input

 1
tx_reconfig_mgmt_address

Input

 10
tx_reconfig_mgmt_writedata

Input

 32
tx_reconfig_mgmt_readdata

Output

 32
tx_reconfig_mgmt_waitrequest

Output

 1
reconfig_write

Output

 1

Reconfiguration Avalon-MM interfaces to the transceiver

reconfig_read

Output

 1
reconfig_address

Output

 10
reconfig_writedata

Output

 32
rx_reconfig_readdata

Input

 32
rx_reconfig_waitrequest

Input

 1
tx_reconfig_readdata

Input

 1
tx_reconfig_waitrequest

Input

 1
rx_cal_busy

Input

 1

Calibration status signal from the RX transceiver

tx_cal_busy

Input

 1

Calibration status signal from the TX transceiver

rx_reconfig_cal_busy

Output

 1

Calibration status signal to the RX transceiver PHY reset control

tx_reconfig_cal_busy

Output

 1

Calibration status signal from the TX transceiver PHY reset control

Table 19.  RX-TX Link Signals
Signal Direction Width Description
reset

Input

 1

Reset to the video/audio/auxiliary/sidebands FIFO buffer.

mgmt_clk

Input

 1

100 MHz clock
i2c_clk

Input

 1

I2C clock

hdmi_tx_ls_clk

Input

 1

HDMI TX link speed clock

hdmi_rx_ls_clk

Input

 1

HDMI RX link speed clock

hdmi_tx_vid_clk

Input

 1

HDMI TX video clock

hdmi_rx_vid_clk

Input

 1

HDMI RX video clock

sys_init

Input

 1

System initialization to reset the system upon power-up

wd_reset

Input

 1

Watchdog timer reset

hdmi_rx_locked

Input

 3

Indicates HDMI RX locked status

hdmi_rx_de

Input

 N

HDMI RX video interfaces

Note: N = symbols per clock
hdmi_rx_hsync

Input

 N
hdmi_rx_vsync

Input

 N
hdmi_rx_data

Input

 N*48
rx_audio_format

Input

 5

HDMI RX audio interfaces

rx_audio_metadata

Input

 165
rx_audio_info_ai

Input

 48
rx_audio_CTS

Input

 20
rx_audio_N

Input

 20
rx_audio_de

Input

 1
rx_audio_data

Input

 256
rx_gcp

Input

 6

HDMI RX sideband interfaces

rx_info_avi

Input

 112
rx_info_vsi

Input

 61
rx_aux_eop

Input

 1

HDMI RX auxiliary interfaces

rx_aux_sop

Input

 1
rx_aux_valid

Input

 1
rx_aux_data

Input

 72
hdmi_tx_de

Output

 N

HDMI TX video interfaces

Note: N = symbols per clock
hdmi_tx_hsync

Output

 N
hdmi_tx_vsync

Output

 N
hdmi_tx_data

Output

 N*48
tx_audio_format

Output

 5

HDMI TX audio interfaces

tx_audio_metadata

Output

 165
tx_audio_info_ai

Output

 48
tx_audio_CTS

Output

 20
tx_audio_N

Output

 20
tx_audio_de

Output

 1
tx_audio_data

Output

 256
tx_gcp

Output

 6

HDMI TX sideband interfaces

tx_info_avi

Output

 112
tx_info_vsi

Output

 61
tx_aux_eop

Output

 1

HDMI TX auxiliary interfaces

tx_aux_sop

Output

 1
tx_aux_valid

Output

 1
tx_aux_data

Output

 72
tx_aux_ready

Output

 1
Table 20.   Platform Designer System Signals
Signal Direction Width Description
clock_bridge_0_in_clk_clk

Input

 1

CPU clock
reset_bridge_0_reset_reset_n

Input

 1

CPU reset
tmds_bit_clock_ratio_pio_external_connection_export

Input

 1

TMDS bit clock ratio

measure_pio_external_connection_export

Input

 24

Expected TMDS clock frequency

measure_valid_pio_external_connection_export

Input

 1

Indicates measure PIO is valid

i2c_master_i2c_serial_sda_in

Input

 1

I2C Master interfaces

i2c_master_i2c_serial_scl_in

Input

 1
i2c_master_i2c_serial_sda_oe

Output

 1
i2c_master_i2c_serial_scl_oe

Output

 1
i2c_master_ti_i2c_serial_sda_in

Input

 1
i2c_master_ti_i2c_serial_scl_in

Input

 1
i2c_master_ti_i2c_serial_sda_oe

Output

 1
i2c_master_ti_i2c_serial_scl_oe

Output

 1
edid_ram_access_pio_external_connection_export

Output

 1

EDID RAM access interfaces.

Assert edid_ram_access_pio_external_connection_export when you want to write to or read from the EDID RAM on the RX top. Connect EDID RAM access Avalon-MM slave in Platform Designer to the EDID RAM interface on the top-level RX modules.

edid_ram_slave_translator_address

Output

 8
edid_ram_slave_translator_write

Output

 1
edid_ram_slave_translator_read

Output

 1
edid_ram_slave_translator_readdata

Input

 8
edid_ram_slave_translator_writedata

Output

 8
edid_ram_slave_translator_waitrequest

Input

 1
powerup_cal_done_export Input 1 RX PMA Reconfiguration Avalon® memory-mapped interfaces
rx_pma_cal_busy_export Input 1
rx_pma_ch_export Output 2
rx_pma_rcfg_mgmt_address Output 12
rx_pma_rcfg_mgmt_write Output 1
rx_pma_rcfg_mgmt_read Output 1
rx_pma_rcfg_mgmt_readdata Input 32
rx_pma_rcfg_mgmt_writedata Output 32
rx_pma_rcfg_mgmt_waitrequest Input 1
rx_pma_waitrequest_export Input 1
rx_rcfg_en_export Output 1
rx_rst_xcvr_export Output 1
tx_pll_rcfg_mgmt_translator_avalon_anti_slave_waitrequest

Input

 1

TX PLL Reconfiguration Avalon® memory-mapped interfaces

tx_pll_rcfg_mgmt_translator_avalon_anti_slave_writedata

Output

 32
tx_pll_rcfg_mgmt_translator_avalon_anti_slave_address

Output

10
tx_pll_rcfg_mgmt_translator_avalon_anti_slave_write

Output

 1
tx_pll_rcfg_mgmt_translator_avalon_anti_slave_read

Output

 1
tx_pll_rcfg_mgmt_translator_avalon_anti_slave_readdata

Input

 32
tx_pll_waitrequest_pio_external_connection_export

Input

 1

TX PLL waitrequest

tx_pma_rcfg_mgmt_translator_avalon_anti_slave_address

Output

12

TX PMA Reconfiguration Avalon® memory-mapped interfaces

tx_pma_rcfg_mgmt_translator_avalon_anti_slave_write

Output

 1
tx_pma_rcfg_mgmt_translator_avalon_anti_slave_read

Output

 1
tx_pma_rcfg_mgmt_translator_avalon_anti_slave_readdata

Input

 32
tx_pma_rcfg_mgmt_translator_avalon_anti_slave_writedata

Output

 32
tx_pma_rcfg_mgmt_translator_avalon_anti_slave_waitrequest

Input

 1
tx_pma_waitrequest_pio_external_connection_export

Input

 1

TX PMA waitrequest

tx_pma_cal_busy_pio_external_connection_export

Input

 1

TX PMA Recalibration Busy

tx_pma_ch_export

Output

 2

TX PMA Channels

tx_rcfg_en_pio_external_connection_export    

TX PMA Reconfiguration Enable

tx_iopll_rcfg_mgmt_translator_avalon_anti_slave_writedata

Output

 32

TX IOPLL Reconfiguration Avalon® memory-mapped interfaces

tx_iopll_rcfg_mgmt_translator_avalon_anti_slave_address

Output

 9
tx_iopll_rcfg_mgmt_translator_avalon_anti_slave_write

Output

 1
tx_iopll_rcfg_mgmt_translator_avalon_anti_slave_read

Output

 1
tx_iopll_rcfg_mgmt_translator_avalon_anti_slave_readdata

Input

 32
tx_os_pio_external_connection_export

Output

 2
Oversampling factor:
  • 0: No oversampling
  • 1: 3× oversampling
  • 2: 4× oversampling
  • 3: 5× oversampling
tx_rst_pll_pio_external_connection_export

Output

 1

Reset to IOPLL and TX PLL

tx_rst_xcvr_pio_external_connection_export

Output

 1

Reset to TX Native PHY

wd_timer_resetrequest_reset

Output

 1

Watchdog timer reset

color_depth_pio_external_connection_export

Input

 2

Color depth
tx_hpd_ack_pio_external_connection_export

Output

 1

For TX hotplug detect handshaking

tx_hpd_req_pio_external_connection_export

Input

 1
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