Abstract: A digital power supply controller is disclosed for controlling the operation of a switched power supply. The controller is contained within an integrated circuit package enclosing an integrated circuit chip. A plurality of inputs are provided on the package for interfacing with the switched power supply for receiving sensed inputs therefrom. A plurality of outputs provide switch control signals for turning on and off switches in the switched power supply. An integrated digital controller on the chip receives the inputs and generates the outputs, and includes an integrated instruction based processing engine for providing a portion of the digital control of the digital controller. A memory associated with the processing engine stores instructions for the processing engine.

Abstract: A digital power supply controller is disclosed for controlling the operation of a switched power supply. The controller is contained within an integrated circuit package enclosing an integrated circuit chip. A plurality of inputs are provided on the package for interfacing with the switched power supply for receiving sensed inputs therefrom. A plurality of outputs provide switch control signals for turning on and off switches in the switched power supply. An integrated digital controller on the chip receives the inputs and generates the outputs, and includes an integrated instruction based processing engine for providing a portion of the digital control of the digital controller. A memory associated with the processing engine stores instructions for the processing engine.

Abstract: A digital controller for controlling the operation of a DC-DC switching converter is disclosed. A digital feedback control system is provided for receiving an analog input voltage representing the output of the switching converter and digitally processing the analog input voltage by comparing it to a reference voltage and then determining analog drive signals to control the operation of the switching converter to provide a regulated output. The digital feedback control system operates in accordance with predetermined operating parametrics. The digital feedback control system also has monitoring inputs and control inputs. A microcontroller monitors the operation of the digital feedback control system and is able to change the operating parametrics under certain predetermined conditions.

Abstract: A monolithic digital power supply controller is disclosed for controlling the operation of a switched power supply. The controller is contained within an integrated circuit package enclosing an integrated circuit chip. A plurality of inputs are provided on the package for interfacing with the switched power supply for receiving sensed inputs therefrom. A plurality of outputs provide switch control signals for turning on and off switches in the switched power supply. An integrated digital controller on the chip receives the inputs and generates the outputs, and includes an integrated instruction based processing engine for providing a portion of the digital control of the digital controller. A memory associated with the processing engine stores instructions for the processing engine.

Abstract: A pin interface for an integrated circuit. The pin interface includes logic gates for processing digital signals, and analog lines for carrying analog signals. The pin interface includes circuits for disabling the digital circuits when configured to carry analog signals. A comparator is associated with at least one of the pins for comparing the analog voltage level thereon with a reference voltage.

Abstract: An integrated circuit providing mixed signal processing. I/O pin interface circuits include logic gates and other circuits for processing digital and analog signals. Processor-controlled configuration circuits allow the various I/O pin interface circuits to process either analog or digital circuits. The I/O pins can be configured for digital or analog operation on the fly.

Abstract: Paging scheme for a microcontroller for extending available register space. A method for paging at least a portion of an address space in a processing system is disclosed. A plurality of addressable memory locations are provided arranged in pages. Each of the addressable memory locations in each of the pages occupies at least a portion of the address space of the processing system and has an associated address in the address space of the processing system. A page pointer is stored in a storage location to define the desired page and then an address is generated in the at least a portion of the address space of the processing system. At least one of the addressable memory locations in at least two of the pages with the same address has identical information stored therein.

Abstract: Method and apparatus for accessing paged memory with indirect addressing. A a method for changing pages of memory in an indirect addressed memory having a plurality of addressable locations therein is diclosed. An index indicative of the page of the memory being addressed is stored in a memory location. The memory is addressed with a direct address that selects one or more of the addressable locations in the addressed page of memory. An interrupt is received from a resource capable of generating an interrupt, which interrupt has associated therewith a defined one of the pages of memory. In response to generation of the interrupt, the value of the stored index t is changed o an index associated with the defined one of the pages of memory associated with the resource. In response to receiving a signal indicative of the generated interrupt having been serviced by a system that services interrupts, the stored index is changed to a different index.

Abstract: A pin interface for an integrated circuit. The pin interface includes logic gates for processing digital signals, and analog lines for carrying analog signals. The pin interface includes circuits for disabling the digital circuits when configured to carry analog signals.

Abstract: An integrated circuit providing mixed signal processing. I/O pin interface circuits include logic gates and other circuits for processing digital and analog signals. Processor-controlled configuration circuits allow the various I/O pin interface circuits to process either analog or digital circuits. The I/O pins can be configured for digital or analog operation on the fly.

Abstract: A pin interface for an integrated circuit. The pin interface includes logic gates for processing digital signals, and analog lines for carrying analog signals. The pin interface includes circuits for disabling the digital circuits when configured to carry analog signals.