Configuration context switcher with a latch
First Claim
1. An integrated circuit (“
- IC”
) comprising;
a configurable circuit for configurably performing one of a plurality of operations based on configuration data;
a plurality of storage circuits for storing a plurality of configuration data sets for the configurable circuit; and
an interconnect circuit for switchably connecting the configurable circuit to different sets of storage circuits to receive different configuration data sets, said interconnect circuit comprising a set of half-swing clock latches for temporarily storing configuration data sets, wherein the set of half-swing clock latches comprises a transistor that receives a half-swing clock signal with a voltage swing that is a fraction of a voltage difference between a supply voltage and a ground voltage for the interconnect circuit.
2 Assignments
0 Petitions
Accused Products
Abstract
Some embodiments provide an IC with configuration context switchers. The IC includes several configurable circuits, each of which configurably performs one of several operations at any given time, based on the configuration data set that it receives at that time. The IC includes several storage circuits for storing several configuration data sets for each of the configurable circuits. The IC also includes a context switching interconnect circuit for switchably connecting the configurable circuit to different sets of storage circuits to receive different sets of configuration data sets. The context switcher includes one or more stages for re-timing the data coming from the configuration storage elements. The stages can include interconnect circuitry or storage circuitry. Some embodiments build one of the stages in the configuration data storage elements. Some embodiments encode the configuration data bits and hence utilize a decoder in the context switcher to decode the encoded configuration data.
276 Citations
21 Claims
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1. An integrated circuit (“
- IC”
) comprising;a configurable circuit for configurably performing one of a plurality of operations based on configuration data; a plurality of storage circuits for storing a plurality of configuration data sets for the configurable circuit; and an interconnect circuit for switchably connecting the configurable circuit to different sets of storage circuits to receive different configuration data sets, said interconnect circuit comprising a set of half-swing clock latches for temporarily storing configuration data sets, wherein the set of half-swing clock latches comprises a transistor that receives a half-swing clock signal with a voltage swing that is a fraction of a voltage difference between a supply voltage and a ground voltage for the interconnect circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- IC”
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9. An electronic device comprising:
-
an integrated circuit (“
IC”
) comprising;a configurable circuit for configurably performing one of a plurality of operations based on configuration data; a plurality of storage circuits for storing a plurality of configuration data sets for the configurable circuit; an interconnect circuit for switchably connecting the configurable circuit to different sets of storage circuits to receive different configuration data sets, said interconnect circuit comprising a set of latches for temporarily storing configuration data sets, wherein the set of latches comprises a transistor that receives a half-swing clock signal with a voltage swing that is a fraction of a voltage difference between a supply voltage and a ground voltage for the interconnect circuit; and a memory device for providing the configuration data to the IC. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An integrated circuit (“
- IC”
) comprising;a configurable circuit for configurably performing one of a plurality of operations based on configuration data; a plurality of storage circuits for storing a plurality of configuration data sets for the configurable circuit; and an interconnect circuit for switchably connecting the configurable circuit to different sets of storage circuits to receive different configuration data sets, said interconnect circuit comprising a transmission gate that allows current flow based on a half-swing signal with a voltage swing that is a fraction of a voltage difference between a supply voltage and a ground voltage for the interconnect circuit. - View Dependent Claims (17, 18, 19, 20, 21)
- IC”
Specification