Bus control device and bus control method
AssigneeFujitsu Limited
InventorKazuyoshi TAKAYAMA
Life of this patent
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Abstract
A bus control device includes a storing unit that stores therein a threshold related to bus width of a bus that is a transfer path for data, a comparing unit that compares, when the bus width is reduced, the reduced bus width with the threshold stored in the storing unit, and a selecting unit that selects, on the basis of the result of the comparison performed by the comparing unit, an interrupt operation performed on a processor that performs a process related to a reduction of the bus width.
Claims6
A bus control device comprising:
- a storing unit that stores therein a threshold related to bus width of a bus that is a transfer path for data;
- a comparing unit that compares, when the bus width is reduced, the reduced bus width with the threshold stored in the storing unit;
- and
- a selecting unit that selects, on the basis of the result of the comparison performed by the comparing unit, an interrupt operation performed on a processor that performs a process related to a reduction of the bus width.
A bus control method, performed by a bus control device when the bus width of a bus that is a transfer path for data is reduced, for generating an interrupt in a processor that performs a process related to a reduction of the bus width, the bus control method comprising:
- reading a threshold from a storing unit that stores therein the threshold related to the bus width of the bus and comparing the read threshold with the reduced bus width;
- and
- selecting, on the basis of the result of the comparison performed at the comparing, an interrupt operation performed on the processor.
Dependencies are inferred from the claim text.