Method and apparatus for a configurable means of connection between an embedded processor and a personal computer

摘要

The invention provides an enhanced peripheral device that can connect to a computer in either in one of two modes: A PCMCIA mode and a serial mode. This allows the device to continue communicating with computer even if unplugged from the PCMCIA connector. Detection circuitry is used to determine whether the peripheral device is connected using the PCMCIA connector or the serial connector. Switching circuitry then routes data from connected connector to the various data handing units, such as UARTs present in the peripheral and the computer.