pub type R = R<SYST_CVR_SPEC>;
Register SYST_CVR reader
SYST_CVR
struct R { /* private fields */ }
Bits 0:23 - Reads return the current value of the SysTick counter. This register is write-clear. Writing to it with any value clears the register to 0. Clearing this register also clears the COUNTFLAG bit of the SysTick Control and Status Register.