All MCB pins revert to GPIO when an MCB is unused.
Unused pins from an active MCB that revert to GPIO.
- Higher order address or bank address pins not needed for a particular density device
- DQ data bits not needed for a particular interface width
- Reset and ODT signals when not needed for a memory standard
- UDQS / UDQS_n strobes for x4 or x8 interfaces
- All other interface pins are required for all MCB based design
Unused pins from an active MCB that do not revert to GPIO.
- DM pins are paired - if only LDM is used, UDM is lost as GPIO
- DM pins are required in all MCB designs to support variable burst length requests at the user interface
- DQS are paired - if only DQS is used (single-ended strobe), DQS_n is lost as GPIO