beginner's question to SSC0

hi,

I try to get the SSC0 on the MCB-XC167NET working.

I initialize with the following instructions:

SSC0_CON_EN = 0;

SSC0_BR = CPU_FREQ / (2 * SSC0_BAUDRATE) - 1;

ALTSEL0P3_P8 = 1; ALTSEL0P3_P9 = 1; ALTSEL0P3_P13 = 1;

DP3_P8 = 0; DP3_P9 = 1; DP3_P13 = 1;

P3_P9 = 1; P3_P13 = 1;

SSC0_CON = 0xC00B;

That should work, but i get no output on P3.9 and no clock on P3.13. Is there anything I might have forgotten?

Greetings, Simon