Here is a diagram of the Timer Array Unit with its three major blocks. The first block is the Timer Clock Selection block; this is the common block at the top of the Timer Array Unit. Here the entire Timer Array Unit can be switched on by the “TAU enable bit” to provide the peripheral with a valid clock signal. To reduce power consumption this flag can also switch off the entire Timer Array Unit. Next is the global pre-scalar, for the entire TAU, where four different sub-clocks can be selected for the TAU channels. There are also additional control registers in the global timer clock selection block containing flags which start and stop each timer channel of the TAU.