Not able to read Reserved Memory

[1nlife]

Not able to read the tag with reserved memory -
There is function in Android APP

///

/// Setup scanning filter.
///

/// Filter start address
/// Filter data length
/// Filter data
/// Permanent
/// True is success, false is failed
public bool SetFilter(int ptr, int cnt, string data, bool save)
{
https://github.com/stuarthallows/chainway-c72-rfid-scan/blob/7a1ed20a2eb5dfce860ab4bab0401e5e447a7378/C72Scan/C72Scan/C72Scan.Android/Services/RfidService.cs#L63
Not able to understand how to pass the following parameter

PTR
Length
STart add
data

Can you please help with this