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

ID 817561
Date 9/30/2024
Public
Document Table of Contents

6.2.2.27. TG_ALT_CAL

Offset: 0x1D4
Default: 0x40
Description: Alternate skew calibration length in UI (rounded down to number of PPI access)
Bit Name Access Description
31 TG_ALT_CAL_ALT_CAL_UNMASK Read Write

Alternate calibration unmask enable

1 - enable alternate calibration generation after test restart

0 - disable alternate calibration generation after test restart

Note: Under normal operation, alternate skew is only done on D-PHY link after the init calibration and D-PHY IP automatically does that. This bit enables driving alternate calibration again for testing/debug.
30:0 TG_ALT_CAL_ALT_CAL_LEN Read Write Alternate skew calibration transfer length in UIs (lower 3 bits are ignored - rounded down to # of bytes).