DRSL
DRSL (Differential Rambus Signaling Level) is a bi-directional, differential signaling standard offering a high-performance, low-power, and cost-effective solution for getting bandwidth on and off chip. DRSL signals are point-to-point and use an ultra-low 200mV signal swing (1.0 to 1.2 V). DRSL also enables low power operation and scalability for future reductions in voltage swing.
