Question regarding CPU_Timer example

Other Parts Discussed in Thread: TMS320F28035

Hi,

I'm using TMS320F28035 experimenter's kit.

I was studying the CPU_Timer example from controlSUITE----- "DSP2803x_examples_ccsv4 \cpu_timer"

at line132:

   CpuTimer0Regs.TCR.all = 0x4001;

//--------------------------------------------------------------------------

0x4001 is equivalent to "100000000000001" in binary.

I don't understand why they set the zeroth bit to 1 since that bit is reserved according to TI's document "TMS320F2803x Piccolo System Control and Interrupts"

Thanks,

Frank