Data processing apparatus and program data setting method thereof

A data processing apparatus, comprising:

• a first ISP device;
• a second ISP device to communicate with the first ISP device;
• a connector connectable to an external device;
• a data line connected between the connector and the first and second ISP devices;
• and
• a clock line selectively connected between the connector and one of the first and second ISP devices.

A data processing apparatus, comprising:

• a connector having first clock and data lines connectable to an external device;
• a first ISP device;
• a second ISP device;
• second clock and data lines connected to the first clock and data lines of the connector, respectively, the second data line connected to the first ISP device;
• third clock and data lines connected to the second ISP device, the third data line connected to the second data line;
• and
• a fourth clock line connected to the second ISP device;
• a switch connected to the second clock line, the fourth clock line, and the third clock line,
• wherein the first ISP device controls the switch to connect the second clock line to one of the fourth clock line and the third clock line.

A data processing apparatus to execute program data, the apparatus comprising:

• a plurality of micro computers to download a plurality of corresponding program data from a program data providing device;
• a connector connectable to the program data providing device;
• and
• a switch to establish a connection between the connector and a selected one of the micro computers such that the selected one of the micro computers communicates with the program data providing device,
• wherein a predetermined one of the micro computers manages operation of the switch with respect to the other micro computers.

A data processing apparatus, comprising:

• a plurality of micro computers;
• a connector to communicate with a program data providing device outside of the apparatus;
• and
• a switch having a plurality of switching terminals and being interposed between the micro computers and the connector and to selectively connect the micro computers to the connector.

A method of setting program data in a data processing apparatus connected to an external program providing device to provide the program data, the method comprising:

• downloading the program data received through a connector from the external program providing device to a first ISP device connected to the connector;
• if the downloading to the first ISP device is completed, switching a first connection between the connector and the first ISP device to a second connection between the connector and the second ISP device to connect the second ISP device with the external program providing device through the connector;
• and
• changing a current status value of the second ISP device.