I am usingSN74AVC4T774PW in my for Audio codec I2S signals. I will be designing my board in 2 different configurations. One of the configuration is 6x6, where all the signals will not be used. During that configuration I have not provide any termination option for unused signal to terminate it to VCC or GND. Will this cause any major functionality issue. I have attached snapshot of schematics. The highlighted signals wont be used in 6x6 configuration and they don't have any termination option. Please suggest. Thanks in advance.