发明名称 |
Microprocessor circuits and systems with life spanned storage circuit for storing non-cacheable data |
摘要 |
A microprocessor (5) for coupling to an external read/write memory (20) having an addressable storage space. This storage space stores cacheable digital data and non-cacheable (32) digital data. The microprocessor includes a data storage circuit (62) for storing a portion of the non-cacheable data. The microprocessor further includes an address storage circuit (64) for storing an address corresponding to the portion of the non-cacheable data. Still further, the microprocessor includes a counter (72) for advancing a count from an initial value (74) toward a threshold value (76) in response to an activity over time. The counter initiates its advancing operation in response to the data storage circuit receiving the portion of the non-cacheable data. Lastly, the microprocessor includes an indicator (66) for indicating the portion of the non-cacheable data in the data storage circuit is expired in response to the count reaching a threshold.
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申请公布号 |
US6178481(B1) |
申请公布日期 |
2001.01.23 |
申请号 |
US19970962987 |
申请日期 |
1997.10.31 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
KRUEGER STEVEN D.;SHIELL JONATHAN H. |
分类号 |
G06F12/08;(IPC1-7):G06F12/00 |
主分类号 |
G06F12/08 |
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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