![]() ![]() Sensors are the movement detectors which sense the mouse movement and button swiches which sense the button states. Typical PC mouse controlling system has the following parts: sensors - > mouse controller - > communication link - > data interface - > driver - > software. ![]() ![]() Sample transmission shown on picture: Start bit (active low, usually between +3v and +1. 32 data is usually sent as a packet with 7 or 8 bit words, start, stop, parity bits (may be varied). PC serial port is often hidden and presented as the RS2. Note: Direction is DTE (Computer) relative DCE (Modem)Nowdays RS2. Hot- plug isn't supported, but sometimes allowed. A common ground between the PC and the associated device is necessary. 32 is the voltage loop serial interface with full- duplex communication represented by voltage levels with respect to system ground. This PC serial port interface is single ended (interconnect two devices only, via RS2. 32 (also called serial, COM port) is still a common interface and most PCs are still equipped with serial interface (RS2. ![]()
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