ok,thx
FPM function can be used. However it is not too well documented as descriptive document has never been officially published. You can download software for this from following link:
http://www.nxp.com/webapp/sps/download/license.jsp?colCode=AN2859SW_FPM&location=null&fasp=1
Also I could send you preliminary description from Motorola time (year 2003) - if you want it please create new case (it is „ticket“ for direct contact to technical information center) and I will send it to you: