Thank you for ur replies.

I want to tell you that im using Labview serial transmission. It is asynchoronous serial transmission. SO it can send 256 bits serially one after the other. On the other end PIC is used along with Max232. im using PIC hserin command to handle this 256 bits of data. But as you know it requires some variable to work with. I want to know that is this possible to use such a big variable that can store 256 bits with hserin command?

my basic task is to first store these 256 bits first and then transfer them to 24C128 eprom, is there any way to transfer directly to eprom without storing any data?