TMS320C5517: McBSP stop function on TMS320C5517

Hello,

I can find MCBSP_start API in CSL which is available from the following URL.
http://www.ti.com/tool/SPRC133
(C55XCSL-LOWPOWER)

However, I cannot find "MCBSP_stop" API.
Why not is the API prepared?
Do not you recommend to stop McBSP?

Best Regards,
Nomo