2.2.1 Data path
The data path consists of three fundamental elements: purpose-specific registers, the memory switch and the processing units. There are four specific purpose registers: the configuration register, the reads register, the frequency vector, and the results register. The configuration register maintains the alignment process information that is currently performed and it is organized as follows:

The reads register is a shift register that contains the currently processed read. Due to its 256-bit length it can store short reads up to 128 nucleotides in length. The frequency vector register stores four 32-bit integers and each integer represents an element of the frequency vector. Meanwhile, the results register contains the intervals