SEMICONDUCTOR DEVICE AND DATA TRANSMISSION METHOD

摘要

In a semiconductor device, a transmitting circuit generates a delayed data signal and a first delayed retransmission request signal by delaying a data signal and a first retransmission request signal, respectively, and outputs a pulse signal at an edge of the delayed data signal and the first delayed retransmission request signal and prohibits output of the pulse signal at an edge of the first delayed retransmission request signal during a specified period across an edge of the delayed data signal.

主权项

1. A semiconductor device comprising:
a transmitting circuit that operates in a first power supply system and outputs a pulse signal based on a first input data signal and a second input data signal; a receiving circuit that operates in a second power supply system different from the first power supply system and restores a delayed first input data signal based on the pulse signal; and an insulation coupler that couples the transmitting circuit and the receiving circuit by a magnetic field or an electric field, wherein the transmitting circuit generates the delayed first input data signal and a delayed second input data signal by delaying the first input data signal and the second input data signal, respectively, and outputs the pulse signal at an edge of the delayed first input data signal and at an edge of the delayed second input data signal and prohibits output of the pulse signal at the edge of the delayed second input data signal a first specified period from a first time before the edge of the delayed first input data signal to a second time after the edge of the delayed first input data signal and wherein the first input data signal has a higher priority than the second input data signal.