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AR# 47522

Zynq-7000 AP SoC, DDR - DCI does not work

Description

DDRIOB has issues with the DCI state machine and cannot dynamically determine the setting for proper impedance matching. This results in DDR2/DDR3 input termination and LPDDR2 output drive strength not matched to the DCI reference resistors.

Solution


Impact: Minor.

Work-around: None.

Configurations Affected: Systems using the DDR memory controller (DDR2, DDR3 and LPDDR2)

Device Revision(s) Affected: Refer to the Zynq-7000 AP SoC - Design Advisory Master Answer Record (Xilinx Answer 47916).
AR# 47522
Date Created 05/24/2012
Last Updated 10/03/2012
Status Active
Type Design Advisory
Devices
  • Zynq-7000
  • ??????