This behavior may be used to signal a request to another vhdmmio entity, such as a counter field. When a 1 is written to a bit in this register, the respective bit in the internal signal is strobed high for one cycle. Zero writes are ignored.

This structure supports the following configuration key.

Configures the internal signal that is to be driven. The value must be a string matching [a-zA-Z][a-zA-Z0-9_]*.

This key is required.