Confused between FDL – T04 and pFDL Type-04.

I am using RL78 G13 controller ,R5f100AF(64K ROM,4K RAM and 4K Data Flash)

I want  to  make use of data flash with the help of FDL library.

Japanese and Indian Renesas websites mentions about FDL type-04  Flash Access Library.

On American site it is called as pico FDL library.

My Questions are:

1. Are both libraries same.

2. What is the actual RAM i need to reserve for this library for above specified controller. I am asking this because at some places I found it around 1K and at some i found it as 156 bytes.