31.5.3.3 Voltage Level Control

The EBI I/Os accept two voltage level ranges: 1.7V to 1.9V range or 3.0V to 3.6V range. The EBI I/O circuits must be programmed to accommodate the voltage level in each application:

• 1.7V to 1.9V range: the SFR_CCFG_EBICSA.EBI_DRIVE must be programmed to HIGH_DRIVE (1).
• 3.0V to 3.6V range: the SFR_CCFG_EBICSA.EBI_DRIVE must be programmed to LOW_DRIVE (0).

At reset output, the drive selection defaults to LOW_DRIVE.

This setting is applied to all the device I/Os with “DDRIO” type as defined in the Pin Description table (refer to 6 Package and Pinout). Other EBI I/Os with “GPIO” type must be programmed according to the recommendations on the GPIO DRIVE and SLEWRATE controls in the PIO user interface.