It operates on 4 bit values and may be programmed to count up or down, by 1 or 2 or even have a non-linear count sequence. In SCE, the memory bank is useful as the core of a counter. they are also as fast as possible in this environment (1 tic). An advantage to them however, is that they have a dedicated reset input. In any case, it is desirable to have fast updates.Īlthough there is a single-chip 4-bit counter in SCE, it has limitations that make it unsuitable for counters that need to be able to have a value loaded or which count in a non-standard sequence. ![]() The counter is specialized for its application since it may need to count up or down and may need the capability of loading a preset value. The Program Counter and the stack controllers are examples. There are several applications for counters in a CPU core.
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