SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The counter is cleared to 0 after reset, and counting is disabled. Subsequently, any write to TSCL initializes the counter to 0 (the write data is ignored) and enables the counter. A write to TSCH is completely ignored, without any side effect of enabling the time stamp counter (like that with TSCL). The counter remains enabled until the next CPU functional reset. Once enabled, there is no way to disable the counter or reinitialize the counter to 0.