SET_PC_REG
SET_PC_REG(PC_COUNTER_CONTROL, 0, ctl);
SET_PC_REG(PC_COUNTER_CONTROL, 0, ctl | CC_EO | CC_EN1);
SET_PC_REG(PC_TRIM1, CC_T1S, PC_RATE / 16 - 1);
SET_PC_REG(PC_COUNTER_WRITE1, CC_C1S, 0);