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A bus in an integrated circuit uses bus interfaces to couple functional blocks to the bus in a processor independent and scalable manner. Various embodiments of the bus interfaces include a bus interface for a bus master functional block, a bus interface for a slave functional block, and a bus inter

A bus in an integrated circuit uses bus interfaces to couple functional blocks to the bus in a processor independent and scalable manner. Various embodiments of the bus interfaces include a bus interface for a bus master functional block, a bus interface for a slave functional block, and a bus interface for either a bus master functional block or a slave functional block. Each bus interface includes a state machine that has at least two operational modes including a fast operational mode having two states and a normal operational mode having at least four states. A bus interface coupled to a bus master functional block implements an operational mode and a bus interface coupled to a slave functional block operates in a complementary operational mode. Each bus interface is also equipped to facilitate scaling of the address and/or data width on the bus. Various embodiments of the bus interfaces are also equipped to support multiple bus masters, broadcast writes, burst mode transfers, and/or tri-states on the bus.

대표청구항 ▼

[ What is claimed is:] [1.] An integrated circuit comprising a bus, a first bus master function block coupled to the bus, and a slave function block also coupled to the bus, the first bus master function block having a bus master interface including a state machine that conducts a bus transaction be

[ What is claimed is:] [1.] An integrated circuit comprising a bus, a first bus master function block coupled to the bus, and a slave function block also coupled to the bus, the first bus master function block having a bus master interface including a state machine that conducts a bus transaction between the first bus master function block and the bus slave function block in either a two state fast mode of operation, or an at least four state normal mode of operation, wherein the at least four states of the at least four state normal mode of operation includes the two states of the two state fast mode of operation.