Raw Binary File (.rbf)
The RBF is a binary file containing the configuration data. The RBF does not contain byte separators (e.g. commas or carriage returns); it is literally a raw binary file that contains a binary bitstream of configuration data. For example, one byte of RBF data
is 8 configured bits 10000101 (85 Hex). Data must be stored so that the least significant bit (LSB) of each data byte is loaded first. The converted image can be stored on a mass storage device. The microprocessor can then read data from the binary file and load it into the FPGA. You can also use the microprocessor to perform real-time conversion during configuration. In the PS configuration schemes, each byte of data should be sent with LSB first. In the FPP, PPS, and PPA configuration schemes, the target device receives its information in parallel from the data bus, a data port on the microprocessor, or some other byte-wide channel.