发明名称 |
Data processing systems with process monitor |
摘要 |
A processing system has a processor with a memory map identifying locations in a memory where data are stored, data associated with an application being stored at the same location every time an application is run. The processor runs each application during specified processing time slots. A monitor contains information as to the memory locations associated with each application and the time slots during which each application should be run. The monitor also has a register containing a keyword, which is compared with a keyword supplied by the processor 1 when it switches between user mode and supervisory mode so that the monitor denies access to memory locations associated with the other mode.
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申请公布号 |
US6526490(B2) |
申请公布日期 |
2003.02.25 |
申请号 |
US20010801654 |
申请日期 |
2001.03.09 |
申请人 |
SMITHS GROUP PLC |
发明人 |
DAVIES JOHN ALUN;MOORE JAMES FREDERICK;STEVENS PETER JOHN;WEALE DENIS VAUGHAN |
分类号 |
G06F9/445;G06F9/46;G06F9/48;G06F11/00;G06F11/30;G06F12/14;G06F21/00;(IPC1-7):G06F9/22 |
主分类号 |
G06F9/445 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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