Hi, I have a question about unused pin in C6678. The unused pin is as follow: - MCMREFCLKOUTP/N - TIMI1/TIMO0/TIMO1 Do I need external Pull-up/Pull-down for those pins? I have look at H/W Design Guide(sprabi2b) but there was no information for the pins. MCMREFCLKOUTP/N is output only, so is it okay to left floating? And TIMI1/TIMO0/TIMO1 are input but they have internal Pull-down, so is it okay to left floating? Best regards, g.f.