发明名称 |
SEMICONDUCTOR INTEGRATED CIRCUIT |
摘要 |
<p>PURPOSE:To prevent an unnecessary task from initiating an interruption and to obtain flexible processing program constitution by deciding task generation and performing task switching when a comparison type timer for task data for task selective switching initiates an interruption. CONSTITUTION:A task generation decision control circuit 12 outputs a data pointer 13 for task generation decision making which indicates corresponding task generation decision data in a task generation decision data storage circuit 11 stored with plural task generation decision data and outputs a task generation signal according to task generation decision data indicated by a data pointer 13 for task generation decision making when a coincidence detection output is sent out. A task switching control circuit 8 controls a pointer for task data indicating corresponding task data in a task data storage circuit 7 stored with plural task data and its output is sent to a central processing unit 10. Consequently, unnecessary interruption processing is prevented and a processing program is made flexible.</p> |
申请公布号 |
JPH04195638(A) |
申请公布日期 |
1992.07.15 |
申请号 |
JP19900335336 |
申请日期 |
1990.11.28 |
申请人 |
MITSUBISHI ELECTRIC CORP |
发明人 |
HONGO KATSUNOBU;UEKI YUUJI |
分类号 |
G06F1/14;G06F9/46;G06F9/48 |
主分类号 |
G06F1/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|