Abstract:
A system and method for testing software code for use on a target processor are disclosed. A system includes a test processor which includes a core substantially similar in physical design and functionality to the target processor for which the software code is intended to be used and an emulation ring including a logic interface to facilitate emulation of the test processor using at least one emulation methodology.
Abstract:
The present invention relates generally to functional pathway configurations at the interfaces between integrated circuits (ICs) and the circuit assemblies with which the ICs communicate. More particularly, the present invention relates generally to the functional pathway configuration at the interface between a semiconductor chip including an IC (e.g., computer chips like microcontrollers and microprocessors) and the circuitry of a system including the chip. Even more particularly, the present invention relates to a 20-pin microcontroller functional pathway configuration for the interface between the microcontroller and a system in which the microcontroller is embedded.
Abstract:
A precision relaxation oscillator with temperature compensation produces a stable clock frequency over wide variations of ambient temperature. The invention has an oscillation generator (100), two independent current generators (200, 300), a transition detector (400) and a clock inhibiter (500). The outputs of the two programmable, independent current generators are combined to provide a capacitor charging current which is independent of temperature. The precision relaxation oscillator is capable of three modes of operation: fast mode, slow/low power mode and sleep mode. The precision relaxation oscillator with temperature compensation and various operating modes is implemented on a single, monolithic integrated circuit.