| 发明名称 |
Programmable interrupt routing in multiprocessor devices |
| 摘要 |
A multiprocessor device is provided that includes a plurality of processors in which each processor of the plurality of processors includes an interrupt controller, and a symmetric interrupt crossbar having a plurality of interrupt inputs in which each interrupt input that is not reserved is coupled to a respective interrupt output of an interrupt source of a plurality of interrupt sources, and a plurality of interrupt outputs in which each interrupt output is coupled to a respective interrupt input of an interrupt controller of one of the plurality of processors, in which the symmetric interrupt crossbar is programmable to map an interrupt signal from any interrupt source of the plurality of interrupt sources coupled to the symmetric interrupt crossbar to any interrupt input of any interrupt controller coupled to the symmetric interrupt crossbar. |
| 申请公布号 |
US9442869(B2) |
申请公布日期 |
2016.09.13 |
| 申请号 |
US201514603609 |
申请日期 |
2015.01.23 |
| 申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
Easwaran Vasant |
| 分类号 |
G06F13/24;G06F13/40;G06F13/28 |
主分类号 |
G06F13/24 |
| 代理机构 |
|
代理人 |
Neerings Ronald O.;Cimino Frank D. |
| 主权项 |
1. A multiprocessor device comprising:
a plurality of processors wherein each processor of the plurality of processors includes an interrupt controller having one or more interrupt inputs; and a symmetric interrupt crossbar coupled to the one or more interrupt inputs of the interrupt controllers, the symmetric interrupt crossbar having a plurality of interrupt inputs and a plurality of interrupt outputs, wherein each interrupt input that is not reserved is coupled to a respective interrupt output of an interrupt source of a plurality of interrupt sources, and the plurality of interrupt outputs is coupled to the one or more interrupt inputs of the interrupt controllers in a one-to-one relationship such that one interrupt output is coupled to only one interrupt input of only one interrupt controller, wherein the symmetric interrupt crossbar is programmable to map an interrupt signal from any interrupt source of the plurality of interrupt sources coupled to the symmetric interrupt crossbar to any interrupt input of any interrupt controller coupled to the symmetric interrupt crossbar, wherein programming the symmetric interrupt crossbar to map interrupt signals from the plurality of input sources to interrupt inputs of the interrupt controllers is performed when the multiprocessor device is booted. |
| 地址 |
Dallas TX US |
