softwareschicht for communication between rs-232 to i2c translation ic and host

摘要

A host controller (304) having a first communication interface, or protocol, writes to and reads from one or more slave devices (310) each having a second communication interlace, or protocol, which is different from the first, through a translation device (302), or integrated circuit, that is responsive to command streams from the host controller (304). The present invention provides a high-level communications protocol by which command information and data are passed to a translation device (302), and the translation device (302) interprets these commands and engages in the desired data transfer operation between the host controller (304) and the slave devices (310). In a further aspect of the present invention, the high-level communications protocol also includes commands interpreted by the translation device (302) to achieve data transfers between the host controller (304) and the translation device (302), including accessing internal registers and I/O ports of the translation device (302).