MIPI D-PHY IP User Guide: Agilex™ 3 and Agilex™ 5 FPGAs

Download PDF
ID 817561
Date 3/30/2025
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents
Document Table of Contents x
1. About the MIPI D-PHY IP 2. Configuring and Generating the MIPI D-PHY IP 3. MIPI D-PHY Interface Design Guidelines 4. Simulating the MIPI D-PHY IP 5. Validating the MIPI D-PHY IP 6. Debugging the MIPI-PHY IP 7. MIPI D-PHY Architecture 8. Interface Signals and Register Maps 9. Verification Test Plan 10. Document Revision History for the MIPI D-PHY IP User Guide
1. About the MIPI D-PHY IP x
1.1. MIPI D-PHY IP Features 1.2. Unsupported Features 1.3. MIPI D-PHY IP Release Information 1.4. MIPI D-PHY IP Block Diagram 1.5. Supported Data Lanes and Clock Lane Per Single HSIO Bank
2. Configuring and Generating the MIPI D-PHY IP x
2.1. Creating a MIPI D-PHY Project 2.2. Generating the Design Example 2.3. Compiling the Design Example
2.1. Creating a MIPI D-PHY Project x
2.1.1. MIPI D-PHY IP Configuration Tab 2.1.2. MIPI D-PHY RX Mode 2.1.3. MIPI D-PHY TX Mode
2.2. Generating the Design Example x
2.2.1. Generating the Synthesizable MIPI D-PHY Design Example
2.2.1. Generating the Synthesizable MIPI D-PHY Design Example x
2.2.1.1. Design Example Block Diagram 2.2.1.2. External Interfaces
3. MIPI D-PHY Interface Design Guidelines x
3.1. Identifying Pin Assignments Based on Byte Location 3.2. Assigning the RZQ pin and Dedicated Reference Clock Pin for MIPI D-PHY IP 3.3. Rules for the Remaining I/O Pin from Same Byte Location 3.4. I/O Bank Sharing 3.5. MIPI D-PHY Placement Rules 3.6. Handling MIPI D-PHY IP Reset
4. Simulating the MIPI D-PHY IP x
4.1. Simulating the MIPI D-PHY IP Design Example with External Loopback Enabled
4.1. Simulating the MIPI D-PHY IP Design Example with External Loopback Enabled x
4.1.1. Simulation Design Example with External Loopback Enabled Block Diagram 4.1.2. Simulating MIPI D-PHY IP Design Example with Modelsim* and Questasim* 4.1.3. Simulating MIPI D-PHY IP Design Example with Synopsys VCSMX* and Xcelium*
5. Validating the MIPI D-PHY IP x
5.1. Adding Signal Tap Logic Analyzer to MIPI D-PHY IP Design Example 5.2. Testing the MIPI D-PHY Design Example
6. Debugging the MIPI-PHY IP x
6.1. Creating a Simplified Design that Demonstrates the Same Problem 6.2. Evaluating FPGA Timing Problems 6.3. Determining if the Problem Exists in Previous Quartus Prime Versions 6.4. Determining if the Problem Exists in the Current Version of Software 6.5. Verifying the MIPI D-PHY IP Using the Signal Tap Logic Analyzer 6.6. Varying the Voltage 6.7. Operating at Lower Speed 6.8. Trying a Different PCB
7. MIPI D-PHY Architecture x
7.1. MIPI D-PHY IP TX 7.2. MIPI D-PHY IP RX 7.3. Initialization and Reset Sequences 7.4. Calibration 7.5. CSR Clock Domain Crossing (CDC)
8. Interface Signals and Register Maps x
8.1. Interface Signals 8.2. Register Maps
8.1. Interface Signals x
8.1.1. General Interface Signals 8.1.2. AXI-Lite Interface 8.1.3. Core Register Bus 8.1.4. D-PHY RX PPI Interface Signals 8.1.5. D-PHY TX PPI Interface Signals 8.1.6. AXI-Lite CSR Access
8.2. Register Maps x
8.2.1. D-PHY IP Registers 8.2.2. D-PHY Traffic Generator (TG) Registers
8.2.1. D-PHY IP Registers x
8.2.1.1. IP_ID 8.2.1.2. IP_CAP 8.2.1.3. D0_CAP 8.2.1.4. DN_CAP 8.2.1.5. RX_CAP 8.2.1.6. TX_CAP 8.2.1.7. TX_PREAMBLE_LEN 8.2.1.8. D-PHY_CSR 8.2.1.9. TX_CLK_LANE_PS 8.2.1.10. RX_DLANE_ERR 8.2.1.11. SKEW_CAL_LEN_B0 8.2.1.12. SKEW_CAL_LEN_B1 8.2.1.13. SKEW_CAL_LEN_B2 8.2.1.14. SKEW_CAL_LEN_B3 8.2.1.15. ALT_CAL_LEN_B0 8.2.1.16. ALT_CAL_LEN_B1 8.2.1.17. ALT_CAL_LEN_B2 8.2.1.18. ALT_CAL_LEN_B3 8.2.1.19. CLK_CSR 8.2.1.20. CLK_STATUS 8.2.1.21. DLANE_CSR_0 8.2.1.22. DLANE_STATUS_0 8.2.1.23. RX_DLANE_DESKEW_DELAY_0 8.2.1.24. RX_DLANE_ERR_0 8.2.1.25. DLANE_CSR_1 8.2.1.26. DLANE_STATUS_1 8.2.1.27. RX_DLANE_DESKEW_DELAY_1 8.2.1.28. RX_DLANE_ERR_1 8.2.1.29. DLANE_CSR_2 8.2.1.30. DLANE_STATUS_2 8.2.1.31. RX_DLANE_DESKEW_DELAY_2 8.2.1.32. RX_DLANE_ERR_2 8.2.1.33. DLANE_CSR_3 8.2.1.34. DLANE_STATUS_3 8.2.1.35. RX_DLANE_DESKEW_DELAY_3 8.2.1.36. RX_DLANE_ERR_3 8.2.1.37. DLANE_CSR_4 8.2.1.38. DLANE_STATUS_4 8.2.1.39. RX_DLANE_DESKEW_DELAY_4 8.2.1.40. RX_DLANE_ERR_4 8.2.1.41. DLANE_CSR_5 8.2.1.42. DLANE_STATUS_5 8.2.1.43. RX_DLANE_DESKEW_DELAY_5 8.2.1.44. RX_DLANE_ERR_5 8.2.1.45. DLANE_CSR_6 8.2.1.46. DLANE_STATUS_6 8.2.1.47. RX_DLANE_DESKEW_DELAY_6 8.2.1.48. RX_DLANE_ERR_6 8.2.1.49. DLANE_CSR_7 8.2.1.50. DLANE_STATUS_7 8.2.1.51. RX_DLANE_DESKEW_DELAY_7 8.2.1.52. RX_DLANE_ERR_7 8.2.1.53. TX_LPX 8.2.1.54. TX_HS_EXIT 8.2.1.55. TX_LP_EXIT 8.2.1.56. TX_CLK_PREPARE 8.2.1.57. TX_CLK_ZERO 8.2.1.58. TX_CLK_POST 8.2.1.59. TX_CLK_PRE 8.2.1.60. TX_HS_PREPARE 8.2.1.61. TX_HS_ZERO 8.2.1.62. TX_HS_TRAIL 8.2.1.63. TX_INIT 8.2.1.64. TX_WAKE 8.2.1.65. RX_CLK_LOSS_DETECT 8.2.1.66. RX_CLK_SETTLE 8.2.1.67. RX_HS_SETTLE 8.2.1.68. RX_INIT 8.2.1.69. RX_CLK_POST 8.2.1.70. RX_CAL_REG_CTRL 8.2.1.71. RX_CAL_STATUS_D-PHY 8.2.1.72. RX_CAL_SKEW_W_START_MUX 8.2.1.73. RX_CAL_SKEW_W_END_MUX 8.2.1.74. RX_CAL_ALT_W_START_MUX 8.2.1.75. RX__CAL_ALT_W_END_MUX 8.2.1.76. RX_DESKEW_DELAY_MUX 8.2.1.77. RX_CAL_STATUS_LANE_MUX 8.2.1.78. PRBS_INIT_0 8.2.1.79. PRBS_INIT_1 8.2.1.80. PRBS_INIT_2 8.2.1.81. PRBS_INIT_3 8.2.1.82. PRBS_INIT_4 8.2.1.83. PRBS_INIT_5 8.2.1.84. PRBS_INIT_6 8.2.1.85. TX_TM_CONTROL 8.2.1.86. TX_MNL_IO_0 8.2.1.87. TX_MNL_D_LP_EN 8.2.1.88. RX_TM_CONTROL
8.2.2. D-PHY Traffic Generator (TG) Registers x
8.2.2.1. TG_TOP_CTRL_0 8.2.2.2. TG_TOP_CTRL_1 8.2.2.3. TG_TOP_DONE 8.2.2.4. TG_TOP_FAIL 8.2.2.5. TG_TOP_TEST_EN 8.2.2.6. TG_TOP_TEST_LINK 8.2.2.7. TARGET_TEST_CNT 8.2.2.8. TCHK_CONTROL 8.2.2.9. TCHK_LINK_STATUS 8.2.2.10. HS_DONE_LANES 8.2.2.11. TCHK_LINK_ERR_STATUS 8.2.2.12. LANE_ERROR_SOT_LANES 8.2.2.13. CAL_ERROR_LANES 8.2.2.14. HS_ERR_LANES 8.2.2.15. HS_TEST_CNT 8.2.2.16. LPDT_TEST_CNT 8.2.2.17. TRIGGER_TEST_CNT 8.2.2.18. ULPS_TEST_CNT 8.2.2.19. TG_RX_OVRD_DATA_PAT 8.2.2.20. TG_RX_BIT_ERROR_CNT 8.2.2.21. TG_RX_HS_TXFER_CNT 8.2.2.22. TG_LINK_CONTROL 8.2.2.23. TG_INIT_CNT 8.2.2.24. TG_HS_LEN 8.2.2.25. TG_LP_LEN 8.2.2.26. TG_SKEW_CAL 8.2.2.27. TG_ALT_CAL 8.2.2.28. TG_PER_SKEW_CAL_LEN 8.2.2.29. TG_TEST_CNT 8.2.2.30. TG_OVRD_DATA_PAT 8.2.2.31. TG_TX_HS_TXFER_CNT
9. Verification Test Plan x
9.1. MIPI D-PHY Tests
1. About the MIPI D-PHY IP
2. Configuring and Generating the MIPI D-PHY IP
3. MIPI D-PHY Interface Design Guidelines
4. Simulating the MIPI D-PHY IP
5. Validating the MIPI D-PHY IP
6. Debugging the MIPI-PHY IP
7. MIPI D-PHY Architecture
8. Interface Signals and Register Maps
9. Verification Test Plan
10. Document Revision History for the MIPI D-PHY IP User Guide

4.1.1. Simulation Design Example with External Loopback Enabled Block Diagram

The MIPI D-PHY IP supports a loopback-enabled option. In the example below, a single D-PHY IP has both the matching TX and RX links instantiated within the same IP.

Alternatively, you could instantiate two IPs for TX and RX, respectively. When TX and RX links are instantiated within the same IP, the D-PHY IP checks for the RX-TX pairing for loopback and passes that information to the TG_BFM block for enabling the loopbacks among the different links.

The simulation design example with external loopback enabled contains the major blocks shown in the figure below:

Figure 13. External Loopback Simulation Testbench

As described in the previous section, the synthesis design example contains a traffic generator and an instance of the D-PHY IP.

The TG_BFM model, which includes the following functions:

  • Clock source for PLL reference clock.
  • AXI-Lite interface instantiation which contains read/write tasks and can be used as an AXI-Lite BFM.
  • Loopback MUXing for looping back TX links to RX links on the same D-PHY IP.
Level Two Title