“电机步进模式设定值为16微步（即一个整步分为16微步来走）时，该寄存器值可以为”

看到有的老师翻译为“In a case that a set value for a motor stepping mode is 16 micro-steps (that is, a full step is divided into 16 micro-steps), a value range of the register may ...”

我想问下，that 引导的从句是个什么从句，这里用that 引导合适么? 我可不可以使用in a case where

希望各位老师能给详细的从语法角度剖析一下，不胜感激！