0x400 0xB5000 0x4B000 DDI Version uint32 0x00010000 DDI version number to ensure QDUTT compatibility. (uint16 major version)[31..16] (uint16 minor version)[15..0] Boot Location ID uint8 0 After the commands have been run, or the commands have been processed. Proceed to boot to the location defined by the ID. EDL 0 Reset into Emergency Download Mode HLOS 1 Continue to boot to HLOS Number of Commands uint32 0 The number of total input commands represented in the flash partition Padding uint8 3 Padding for alignment. Ignored by QDUTT. Read 0 uint64 Performs a read operation on DDR. Start Addr uint64 0 The starting address. Use 0 for the start of DDR. End Addr uint64 0 The ending address. Use 0 for the end of DDR. Repeat Count uint64 1 The number of times to repeat the read operation. If 0, test will repeat forever.

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided

Write 1 uint64 Performs a write operation on DDR. Start Addr uint64 0 The starting address. Use 0 for the start of DDR. End Addr uint64 0 The ending address. Use 0 for the end of DDR. Repeat Count uint64 1 The number of times to repeat the read operation. If 0, test will repeat forever. WR Flags uint8 1 Random 0 If 1, then random data is written. Invert Row 1 If 1, then pattern will be flipped on each row. This is only used when random is not set, and it can only be used with a pattern data packet of size 1. Random Seed uint32 0 Seed to be used for random. If 0, then seed will be dynamically generated using a timestamp. Random Stride uint64 0 Number of 64-bit words of random data to generate. Will be memcopied repeatedly to fill entire space between start_addr and end_addr. Padding uint8 3 Padding for alignment. Ignored by QDUTT. Pattern Data Packet uint64 0 Pattern to use for writes. If defined, will override random. Val uint64

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided

Read-Write 2 uint64 Performs a write, followed by a read and optionally a compare. Start Addr uint64 0 The starting address. Use 0 for the start of DDR. End Addr uint64 0 The ending address. Use 0 for the end of DDR. Repeat Count uint64 1 The number of times to repeat the read operation. If 0, test will repeat forever. RDWR Flags uint8 3 Verify 0 If 1, then verify the correct data is read. Random 1 If 1, then random data is written. Invert Row 2 If 1, then pattern will be flipped on each row. This is only used when random is not set, and it can only be used with a pattern data packet of size 1. Random Seed uint32 0 Seed to be used for random. If 0, then seed will be dynamically generated using a timestamp. Random Stride uint64 0 Number of 64-bit words of random data to generate. Will be memcopied repeatedly to fill entire space between start_addr and end_addr. Padding uint8 3 Padding for alignment. Ignored by QDUTT. Pattern Data Packet uint64 0 Pattern to use for writes. If defined, will override random. Val uint64

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided Total fail count uint32 Ranks uint8 Rank fail count uint32 Channels uint8 Channel fail count uint32 Failing Data Packets uint32 Failing Address uint64 Expected Data uint64 Read Data uint64

Delay 3 uint64 Insert a ms based delay. Delay uint32 0 The delay in ms Padding uint8 4 Padding for alignment. Ignored by QDUTT.

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided

Frequency Switch 4 uint64 Performs a frequency switch. Frequency uint32 200000 The frequency in kHz Padding uint8 4 Padding for alignment. Ignored by QDUTT.

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided

Eye Plot 6 uint64 Performs a read or write shmoo at a specific frequency to generate a data eye plot. Plot Type uint8 0 Selects what type of data eye to generate Read 0 Read data eye Write 1 Write data eye Frequency uint32 1804800 The frequency in kHz Padding uint8 3 Padding for alignment. Ignored by QDUTT.

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided Train Record Packet uint16 Vref uint8 Coarse uint8 Fine uint8 Plot Record Packet uint16 Vref uint8 Coarse uint8 Fine uint8 Data uint32[4][2]

Get Safe Mode Info 9 uint64 Requests device information

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided self_refresh_mode_enable uint8 self_refresh_mode_enable refresh_rate_polling_enable uint8 refresh_rate_polling_enable periodic_zq_calibration_enable uint8 periodic_zq_calibration_enable periodic_training_enable uint8 periodic_training_enable partial_array_self_refresh_enable uint8 partial_array_self_refresh_enable power_down_enable uint8 power_down_enable clock_stop_enable uint8 clock_stop_enable auto_precharge_enable uint8 auto_precharge_enable low_power_CA_buffer_support_enable uint8 low_power_CA_buffer_support_enable single_ended_clock_support_enable uint8 single_ended_clock_support_enable single_ended_write_DQS_support_enable uint8 single_ended_write_DQS_support_enable single_ended_read_DQS_support_enable uint8 single_ended_read_DQS_support_enable base_logging_enable uint8 base_logging_enable llcc_extended_logging_enable uint8 llcc_extended_logging_enable mc_extended_logging_enable uint8 mc_extended_logging_enable phy_extended_logging_enable uint8 phy_extended_logging_enable

Read eCDT 10 uint64 Reads eCDT Settings, to be parsed by QDUTT

Test Status uint8 Command Complete 0 If 1, then DDI command did completed successfully Command Failure 1 If 1, then DDI command failed Invalid Input 2 If 1, then invalid command input was provided Frequency Settings uint8 Frequency uint32 enable uint8 vddcx uint8 vddmx uint8 vdda uint8 eCDT Settings uint8 Setting ID uint8 Value uint8