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DLPC200: Unused PORTx_Dx operation

Part Number: DLPC200

Hello TI members,

DLPC200 datasheet recommends unused PORTx_Dx should connect  to 10kΩ pulldown. However, my customer is asking whether something of problems occur if unused PORT1/2_D0-23 are directly connected to GND. Do you have any comments regarding direct connection to GND?