External Memory Interfaces Intel® Agilex™ FPGA IP User Guide

ID 683216
Date 6/20/2022
Public

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Document Table of Contents

11.10.4.2. Debug Enums

This topic describes enums used in the debug data structures.

ENUM_CAL_ERROR

Entry Value
SUCCESS 0
CALIBRATION_FAILED 1
MALLOC_ERROR 2
RIGHT_EDGE_NOT_FOUND 11
HARDWARE_TIMEOUT 12
REFRESH_MISSED 13
BAD_LOCK_SPEED 14
RANK_SKEW_TOO_LARGE 15

ENUM_CAL_INIT_MODE

Entry Value Behavior if this is the Value of Field
FULL_RECAL 3 Full re-calibration. Mostly same as power up calibration. Sequencer does not have to reset. Typical recalibration requests should use this option.
SKIP_INIT_VREF 6 No vref init.

ENUM_CAL_STAGE

Entry Value
NIL 0
CA_LEVEL 1
CA_DESKEW 2
DQS_EN 3
READ_DESKEW 4
WRITE_LEVEL 5
WRITE_DESKEW 6
LFIFO 7
CA_RANK_CENTER 8
VREF_IN 9
VREF_OUT 10
CTLE_IN 11
CTLE_OUT 12
CLEANUP 13

ENUM_DEBUG_INTERFACE_COMMAND_STATUS_CODES

Entry Value Meaning
TX_STATUS_CMD_READY 0 Interface ready to accept commands.
TX_STATUS_CMD_EXE 1 Response not ready as command is being executed.
TX_STATUS_ILLEGAL_CMD 2 Illegal command received.
TX_STATUS_RESPONSE_READY 3 Response ready.

ENUM_DEBUG_INTERFACE_COMMANDS

Entry Value Command Description
CMD_WAIT_CMD 1000 The wait command. When the debug data command is set to CMD_WAIT_CMD and the status is TX_STATUS_CMD_READY, the interface is ready to accept commands from user.
CMD_NOP 0 No operation command.
CMD_RESPONSE_ACK 1 Command response acknowledged.
RUN_MEM_CALIBRATE 5

Run memory calibration:

command_parameters[0]: Interface ID;

command_parameters[1]: Initialization mode.

MARK_ALL_RANKS_AS_VALID 17 Mark all ranks as being valid for calibration.
MARK_RANK_AS_SKIP 18 Mark a specific rank to be skipped for calibration: command_parameters[0]: Rank to skip.
SET_VREF_IN 26 Set the starting value of VREF IN for the next recalibration: command_parameters[0]: VREF setting.
SET_VREF_OUT 27

Set the starting value of VREF OUT for the next recalibration:

command_parameters[0]: VREF setting.

command_parameters[1]: VREF range.

SET_SKIP_STEPS 30 Set the calibration steps to skip: command_parameters[0]: flags indicating steps to skip (ENUM_DBG_CALIB_SKIP).

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