초록 ▼

A system and method of implementing thereof that maps and condenses system control using reachable state control words is described. The system includes a control logic block, a look-up table which stores N-bit reachable state control words derived from an implementation description N-bit control si

A system and method of implementing thereof that maps and condenses system control using reachable state control words is described. The system includes a control logic block, a look-up table which stores N-bit reachable state control words derived from an implementation description N-bit control signal, and a logic hardware block. The control logic block accesses the look-up table with a M-bit control word address. The accessed look-up table outputs a N-bit reachable state control word which is used to control the logic hardware block so as to simulate functions as defined by a user input description. A method for implementing the system is performed by synthesizing the user input description to generate an implementation description which describes a control model of the system in terms of a control logic block driving a logic hardware block with a N-bit control signal. The implementation description is analyzed to determine the reachable states of the N-bit control signal. A look-up table is created by storing N-bit reachable state control words corresponding to each reachable state of the N-bit control signal. A mapping function is determined between each reachable state control word stored in the look-up table and a M-bit control word address for accessing the look-up table. Finally, a control logic block is configured or programmed to implement the determined mapping function.

대표청구항 ▼

A system and method of implementing thereof that maps and condenses system control using reachable state control words is described. The system includes a control logic block, a look-up table which stores N-bit reachable state control words derived from an implementation description N-bit control si

A system and method of implementing thereof that maps and condenses system control using reachable state control words is described. The system includes a control logic block, a look-up table which stores N-bit reachable state control words derived from an implementation description N-bit control signal, and a logic hardware block. The control logic block accesses the look-up table with a M-bit control word address. The accessed look-up table outputs a N-bit reachable state control word which is used to control the logic hardware block so as to simulate functions as defined by a user input description. A method for implementing the system is performed by synthesizing the user input description to generate an implementation description which describes a control model of the system in terms of a control logic block driving a logic hardware block with a N-bit control signal. The implementation description is analyzed to determine the reachable states of the N-bit control signal. A look-up table is created by storing N-bit reachable state control words corresponding to each reachable state of the N-bit control signal. A mapping function is determined between each reachable state control word stored in the look-up table and a M-bit control word address for accessing the look-up table. Finally, a control logic block is configured or programmed to implement the determined mapping function. A robust external interface for a computer system is disclosed. The robust external interface allows a user to insert or remove external peripherals to the external interface at any time such that the user does not need to carefully follow any scripted procedures. The external interface software detects insertions or removals and acts in an appropriate manner.