摘要:
A system and apparatus are described for providing greater flexibility and performance in a mixed-signal array through improved and highly configurable routing, control elements and signal processing capabilities.
摘要:
One embodiment of the present invention is a programmable clock architecture for a microcontroller that provides multiple different clocking signal frequencies that may be utilized by one or more programmable logic blocks of the microcontroller. In this manner, the clocking architecture enables the programmable logic blocks to perform a wider variety of functions because they have access to a wider variety of clock signal frequencies. Specifically, the clocking architecture of the present embodiment includes a plurality of clocking sources. For example, the output clocking signal of one of the clock oscillators is divided down to different smaller frequencies and also multiplied to provide more frequencies that may be utilized by the programmable circuit blocks and processor of the microcontroller. Additionally, the clocking architecture includes a programmable option of utilizing precision clocking signals and/or less precise clocking signals depending on the desired applications of the microcontroller's programmable circuit blocks.
摘要:
A liquid crystal display (LCD) driving system includes a reference voltage generator to generate a plurality of reference voltages. The LCD driving system also includes a plurality of drive buffers to generate drive voltages according to at least one of the reference voltages, and to drive at least a portion of a liquid crystal display to present data according to the drive voltages.
摘要:
One embodiment of the present invention includes a microcontroller that enables its on-chip microprocessor to write data into a register of an on-chip programmable analog circuit even though the two circuits may be operating at different frequencies. Specifically, the microcontroller includes a write synchronization circuit that helps facilitate the write operation between these two circuits. For example, the write synchronization circuit is coupled to receive write cycle signals from the microprocessor and is also coupled to receive trigger signals based on a clocking signal received by the programmable analog circuit. Therefore, upon receiving a write cycle signal, the write synchronization circuit has the ability (if needed) to stall the microprocessor's operations until the optimum time for writing data into the register for controlling the programmable analog circuit. As such, the write synchronization circuit dynamically synchronizes the microprocessor's write operation with the programmable analog circuit's optimum timing condition for receiving data.
摘要:
A liquid crystal display (LCD) driving system includes a reference voltage generator to generate a plurality of reference voltages. The LCD driving system also includes a plurality of drive buffers to generate drive voltages according to at least one of the reference voltages, and to drive at least a portion of a liquid crystal display to present data according to the drive voltages.
摘要:
An integrated circuit device may include a reconfigurable analog signal switching fabric comprising a plurality of global buses that are selectively connected to external pins by pin connection circuits in response to changeable analog routing data, and a plurality of local buses that are selectively connected to analog blocks and/or global buses by routing connection circuits in response to the analog routing data; and at least one processor circuit that executes predetermined operations in response to instruction data.
摘要:
A programmable system includes a programmable analog system that is reconfigurable to perform various analog operations, and includes a programmable digital system that is reconfigurable to perform various digital operations. The programmable system also includes a microcontroller capable of reconfiguring and controlling the programmable analog system and the programmable digital system. The programmable digital system is configured to control the programmable analog system autonomously of the microcontroller.
摘要:
A programmable system includes a programmable analog system that is reconfigurable to perform various analog operations, and includes a programmable digital system that is reconfigurable to perform various digital operations. The programmable system also includes a microcontroller capable of reconfiguring and controlling the programmable analog system and the programmable digital system. The programmable digital system is configured to control the programmable analog system autonomously of the microcontroller.
摘要:
A system for the calibration of a programmable system-on-a-chip is described. More specifically, embodiments of the present invention relate to a system that calibrates a programmable analog block in a system-on-a-chip without the use of external components.
摘要:
A programmable system includes an input/output (I/O) pin that is configurable into multiple operational states. The programmable system further includes a memory device to store configuration data that, when provided to the I/O pin, causes the I/O pin to reconfigure into one of the operational states. When power is supplied to the system, the memory device is configured to provide the configuration data to the I/O pin prior to a system microcontroller becoming operational responsive to the power.