I have one doubt on spi protocol.How to read and write data through spi at a time.Is there any specified method is there for that.Actually we can read or write only one operation at a time.But how can i read and write both at a time instantaneously.
SPI has separate lines for sending and receiving data so you can easily do it at the same time while generating the clock, as regards to how then the both the sending and receiving devices datasheet is required.