The Unisim names for the three-state enables of the SD data and command signals on EMIO include an 'N' suffix: EMIOSDIOxDATATN and EMIOSDIOxCMDTN. This normally indicates an active-Low signal. However, these signals are active-High.
Impact: |
Trivial. The polarity of the SD three-state signals are inverted. |
Configurations Affected: |
Systems that use the SDIO controller via the EMIO interface. |
| Device Revision(s) Affected: | Refer to (Xilinx Answer 47916) - Zynq-7000 Design Advisory Master Answer Record |
Work-around: To make these signals active-Low, add inverters to these signals.