Single chip microcomputer having a built-in on screen display device
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United States of America Patent
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-
May 2, 2000
Grant Date -
N/A
app pub date -
Sep 30, 1994
filing date -
Oct 5, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microcomputer has a plurality of on screen display devices in one chip. Under control of a CPU, display tasks are respectively controlled in the on screen display devices in an independent manner, thereby obtaining a desired display screen on which the display tasks are simultaneously displayed. The microcomputer has a function of controlling priorities of display of the display tasks, and that of controlling occurrence of interrupt and existence of a mask in display of the display tasks. A desired display screen on which the display tasks are simultaneously displayed is obtained by combining these control functions.
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