"TMS320C55x DSP Library DSPLIB Programmer's Reference"

iir32b21 – highb21 – lowb11 – highb11 – lowb01 – highb01 – lowa21 – higha21 – lowa11 – higha11 – lowb22 – highb22 – lowb12 – highb12 – lowb02 – highb02 – lowa22 – higha22 – lowa12 – higha12 – lowbeginning of biquad 1beginning of biquad 2 coefsr[nr]dbuffer[2*nbiq+2]Pointer to output data vector of size nr. r can beequal or less than x.Pointer to address of 32-bit delay line dbuffer. Eachbiquad has 3 consecutive delay line elements. Forexample for nbiq = 2:d1(n–2) – lowd1(n–2) – highd1(n–1) – lowd1(n–1) – highd2(n–2) – lowd2(n–2) – highd2(n–1) – lowd2(n–1) – highbeginning of biquad 1beginning of biquad 24-54