Clock display device

1. A clock display device comprising:

a central processing unit;

a liquid crystal display section that can display a plurality of digits, and at which a display portion of each digit is formed from a plurality of display segments;

a clock information generating section that generates clock information;

a converting section that converts the clock information into character data for display at the liquid crystal display section;

a direct memory access section that fetches the character data for display without going through the central processing unit, and transfers the fetched character data for display without going through the central processing unit;

a display register that stores the character data for display, that is transferred from the direct memory access section, with a single address being given to each digit;

a programmable display allocating section that, on the basis of allocation information that is set in advance, allocates correspondences between respective bits of the character data for display that is within the display register, and respective display segments of the liquid crystal display section; and

a display control section that, on the basis of results of the allocation, visibly displays the clock information at the liquid crystal display section.

2. The clock display device of claim 1 , wherein the direct memory access section receives an interruption request from the clock information generating section, and carries out fetching and transfer of the character data for display.

3. The clock display device of claim 1 , wherein the display segments are positioned at intersection points of segment signal lines and common signal lines that are disposed at the liquid crystal display section, and the programmable display allocating section carries out allocation with respect to correspondences between respective bits of the character data for display that is stored in the display register, and the segment signal lines and common signal lines.

4. The clock display device of claim 3 , wherein the allocation information is rewritable.

5. The clock display device of claim 3 , wherein, on the basis of bit values of the respective bits of the character data for display, the display control section inputs predetermined control signals to the allocated segment signal lines and common signal lines, and sets the display segments in lit states or unlit states.

6. The clock display device of claim 5 , wherein the display control section visibly displays at least a second, a minute, and an hour in correspondence with the respective digits.