Patent ID: 7984321
Filing Date: 2011-07-19
Classification: G06F,H04L

Abstract:
1. A host-side data transfer control device that performs data transfer to a target-side data transfer with a target-side data transfer control device, the host-side data transfer control device comprising: an OUT-transfer transmitter circuit that transmits OUT data to an OUT-transfer receiver circuit of the target-side data transfer control device; a clock-transfer transmitter circuit that transmits a first clock signal to a clock-transfer receiver circuit of the target-side data transfer control device; an IN-transfer receiver circuit that receives IN data from IN-transfer transmitter circuit of the target-side data transfer control device; a strobe-transfer receiver circuit that receives a strobe to sample the IN data, the strobe-transfer receiver circuit receiving the strobe from a strobe-transfer transmitter circuit of the target-side data transfer control device, the strobe being generated by the target-side data transfer control device based on the first clock signal; a power-down circuit that sets one mode from modes including a first mode and a second mode; and a second clock signal of the target-side data transfer control device being generated according to the first clock signal received by the clock-transfer receiver circuit, the second clock signal being stopped in the first mode, and the clock-transfer transmitter circuit transmitting the first clock signal at least in the second mode.