Abstract:
Un dispositivo de microprocesador de n bits que comprende: una unidad central de procesamiento de n bits (CPU); una pluralidad de registros (185) de funciones especiales y de registros de proposito general con los que seestablece una correlacion en memoria con una pluralidad de bancos, en el que los registros (185) de funcionesespeciales comprenden por lo menos dos registros (150; 960) de direccion de memoria indirecta de 16 bits a losque puede acceder dicha CPU a traves de todos los bancos; una unidad de acceso a banco para acoplar dicha CPU con uno de dicha pluralidad de bancos; una memoria (160) de datos acoplada con la CPU; y una memoria (120) de programa acoplada con la CPU, en el que dichos registros (150; 960) de direccion de memoria indirecta pueden accionarse para acceder a dichamemoria (160) de datos o memoria (120) de programa y en el que un bit (965) en cada uno de dichos registros(150; 960) de direccion de memoria indirecta determina un acceso a dicha memoria (160) de datos o a dichamemoria (120) de programa.
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:
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:
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 configurable mixed analog and digital mode controller may be fabricated as a single monolithic device such as an integrated circuit semiconductor die or a multi-chip package (MCP). The configurable mixed analog and digital mode controller may be a microcontroller and/or a digital signal processor (DSP) in combination with both analog and digital peripherals that may be configured and connected together, both before and during operation thereof, to function as a complete controller system.
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.