The total number of RTP ports created by a TDM FIR will be given by the formula:
TotalRtpPorts = (TP_SSR * TP_CASC_LEN)
For example, if TP_SSR = 2 and TP_CASC_LEN = 3, the coefficient array will be divided into 2 * 3 = 6 parts.
FIR TDM graph class provides a helper method: getTotalRtpPorts() to get number of RTP ports. For more details, refer to: API Reference Overview.