Remote display module

A display unit comprising:

• a display;
• control keys including at least up and down scroll keys and an enter key;
• a device interface which provides a connection to a device;
• and
• electronic circuitry which forwards messages to the device to indicate activation of control keys and which displays a menu received in messages from the device, the electronic circuitry displaying data entered with the control keys and forwarding the displayed data to the device.

A device comprising:

• a processor;
• a display interface in communication with the processor, the display interface providing a connection to a display unit;
• a computer-readable medium in communication with the processor, the computer-readable medium storing computer-executable software code for:
• providing a display driver for communication with the display unit;
• generating a first menu specific to the device;
• communicating the messages to the display unit;
• and
• receiving a key entry from the display unit, processing the key entry and generating a second menu in response to the key entry.

A method for displaying a menu on a portable display unit comprising:

• connecting the portable display unit to a device;
• initiating the display unit and the device to assure a proper connection between the display unit and the device;
• at the device, generating a first menu and communicating the first menu to the display unit;
• from the display unit, forwarding a key entry;
• and
• at the device, processing the key entry, generating a second menu in response to the key entry, and communicating the second menu to the display unit.