The S1 switch between VPU_FS pin & Vpre shall be closed under which circumstances while releasing FSxB pins? As seen in the diagram of FS1B activation, switch S1 when closed, connects the Vpre & VPU_FS.
If I close the S1 switch from SF_OUTPUT_REQUEST register to release the FSxB pins, shall I again open S1 to request the assertion of the backup delay of FS1B???
Thanks in advance.