Configuration and method having a first device and a second device connected to the first device through a cross bar
First Claim
1. A configuration, comprising:
- a first device;
a cross bar;
a second device connected to said first device through said cross bar, said first device accessing said second device through said cross bar to at least one of read data from said second device and write data to said second device;
upon the occurrence of a read access to said second device, said first device reading the data emitted from said second device upon receipt of a ready signal produced by said second device and supplied to said first device through said cross bar; and
upon the occurrence of a write access from said first device to said second device;
said first device emitting the data to be written to said second device upon receipt by said first device of a ready signal produced by said second device and supplied to said first device through said cross bar; and
said second device reading the data emitted from said first device upon receipt by said second device of a data valid signal produced by said first device and supplied to said second device through said cross bar.
1 Assignment
0 Petitions
Accused Products
Abstract
A configuration and method for operating the configuration includes first and second devices connected to one another through a cross bar and accessing one another through the cross bar for reading and/or writing data. When a read access to the second device occurs, the first device reads the data emitted from the second device when it receives a ready signal produced by the second device and supplied to the first device through the cross bar, and, when a write access occurs from the first device to the second device, the first device emits the data to be written to the second device when it receives a ready signal produced by the second device and supplied to the first device through the cross bar and the second device reads the data emitted from the first device when it receives a data valid signal produced by the first device and supplied to the second device through the cross bar.
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Citations
28 Claims
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1. A configuration, comprising:
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a first device;
a cross bar;
a second device connected to said first device through said cross bar, said first device accessing said second device through said cross bar to at least one of read data from said second device and write data to said second device;
upon the occurrence of a read access to said second device, said first device reading the data emitted from said second device upon receipt of a ready signal produced by said second device and supplied to said first device through said cross bar; and
upon the occurrence of a write access from said first device to said second device;
said first device emitting the data to be written to said second device upon receipt by said first device of a ready signal produced by said second device and supplied to said first device through said cross bar; and
said second device reading the data emitted from said first device upon receipt by said second device of a data valid signal produced by said first device and supplied to said second device through said cross bar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for at least one of reading and writing data, which comprises:
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connecting a second device to a first device through a cross bar;
accessing the second device with the first device through the cross bar for at least one of reading and writing data;
when a read access to the second device occurs, reading the data emitted from the second device with the first device when the first device receives a ready signal produced by the second device and supplied to the first device through the cross bar; and
when a write access from the first device to the second device occurs;
emitting, from the first device, the data to be written to the second device when the first device receives a ready signal produced by the second device and supplied to the first device through the cross bar; and
reading the data emitted from the first device with the second device when the second device receives a data valid signal produced by the first device and supplied to the second device through the cross bar.
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28. A configuration, comprising:
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a first means for reading and writing;
a cross bar;
a second means for reading and writing connected to said first read/write means through said cross bar, said first read/write means accessing said second read/write means through said cross bar to at least one of read data from said second read/write means and write data to said second read/write means;
upon the occurrence of a read access to said second read/write means, said first read/write means reading the data emitted from said second read/write means upon receipt of a ready signal produced by said second read/write means and supplied to said first read/write means through said cross bar; and
upon the occurrence of a write access from said first read/write means to said second read/write means;
said first read/write means emitting the data to be written to said second read/write means upon receipt by said first read/write means of a ready signal produced by said second read/write means and supplied to said first read/write means through said cross bar; and
said second read/write means reading the data emitted from said first read/write means upon receipt by said second read/write means of a data valid signal produced by said first read/write means and supplied to said second read/write means through said cross bar.
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Specification