NOREF=AVAILABLE, SKEW=PRECISE
systick timer control register
TENMS | system tick timer calibration value |
SKEW | whether THE TENMS value will generate a precise 10 millisencod time or an approximation 0 (PRECISE): TENMS is considered to be precise 1 (NOT_PRECISE): TENMS is not considered to be precise |
NOREF | whether an external reference clock is available 0 (AVAILABLE): external reference clock is available 1 (NOT_AVAILABLE): external reference clock is not available |
EN_STCLKEN | 1 is enable STCLKEN; |