Hello @ketulpatel
P6_5 is normal drive pin and we can't set it to high drive, the limit is on chip design.
According to UM, The pin configuration registers for high-drive pins control the following pins:
• P1_17
• P2_3 to P2_5
• P8_0 to P8_2
• PA_1 to PA_3
Hope this will help you,
Jun Zhang