PCC_TIMER_CYCLES
#define PCC_TIMER_PRELOAD (0x10000 - PCC_TIMER_CYCLES)
clk_total += PCC_TIMER_CYCLES;
ticks = count + overflow * PCC_TIMER_CYCLES;
clk_total += PCC_TIMER_CYCLES;
out_be32(PCCTCMP1, PCC_TIMER_CYCLES);
ticks += overflow * PCC_TIMER_CYCLES;