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关于F28335的CANMC寄存器



CANMC寄存器的TCC位表是的是复位时间戳计数器的高16位复位,但有点不明白:

TCC写1的时候,时间戳计数器的MSB被复位到0。Reference Guide中有一句话

“The TCC bit is reset after one clock cycle by the internal logic.”

那么TCC是以什么时间基准来说 一个时钟周期后被内部逻辑复位?