DATA TRANSMISSION APPARATUS AND METHOD ON I2C BUS, AND DATA TRANSMISSION PROGRAM ON I2C BUS

摘要

PPROBLEM TO BE SOLVED: To provide a data transmission apparatus on I2c bus capable of accumulating transmission data on an I2C bus with a very simple configuration to easily analyze an error of the I2C bus. PSOLUTION: The I2C bus connecting a master 1 and a slave 2 via a bus 3 is connected to a memory circuit 4. When a write access to the slave 2 is made, an I2C address of the memory circuit 4 is set to have the same I2C address as that of the slave 2 to store in the memory circuit 4 the data written to the slave 2, and the I2C address of the memory circuit is reset to the previous I2C address after completing writing. In writing, data to be written to the slave can be stored in the memory circuit, and in reading, read from the slave is not affected. PCOPYRIGHT: (C)2007,JPO&INPIT