Use the SCCLR command to flush the input and output buffers for SCI simulation. This resets the buffers and clears out all values. Note that if the SCI is in the process of shifting a value, this command allows the SCI to finish the transfer. Refer the SCDI and SCDO commands for accessing the input and output buffers of the SCI interface.
>gdi SCCLR
>gdi SCCLR
Clear input and output buffer for SCI simulation