Mixed-Signal Array Architecture for Dynamic Analog-Digital Routing
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Solution Overview
Problem
Current microcontrollers lack the ability to dynamically program both analog and digital circuits, requiring pre-programming and necessitating multiple semiconductor chips for complex communication between analog and digital circuits, which increases area and cost on a semiconductor chip.
Innovation Solution
A Programmable System-on-Chip (PSoC) architecture that integrates programmable universal digital blocks (UDBs) and mixed-function analog blocks, allowing for dynamic reconfiguration of both digital and analog circuits on a single chip, enabling flexible routing and interconnectivity between digital and analog subsystems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-programmed digital circuits (PLA or FPGA) are used to provide general purpose digital functions, then digital functionality is achieved, but chip area and manufacturing cost increase due to excessive digital logic requirements
Solution Approach 1:
The patent implements a universal digital block (UDB) that can be dynamically reconfigured to perform multiple digital functions through programmable logic elements. Instead of dedicating separate fixed-function digital circuits for each operation, a single UDB structure with configurable logic gates, multiplexers, and interconnects can adapt to various digital tasks, significantly reducing the total chip area required while maintaining versatility.
Solution Approach 2:
The patent introduces dynamically reconfigurable digital circuits that can change their functionality during operation through configuration registers and control signals. This dynamic capability allows the same hardware structure to serve different purposes at different times, eliminating the need for multiple static digital circuits and reducing overall chip area while preserving adaptability.
2Reliability
If pre-programmed analog circuits (CT or SC) are used with fixed functions, then analog functionality is achieved, but dynamic reconfiguration capability is lost
Solution Approach 1:
The patent implements dynamically reconfigurable analog circuits where switch matrices and programmable connections allow the analog building blocks to change their interconnections and operational modes during operation. Configuration registers control switch states to rewire analog circuits on-the-fly, enabling the same analog hardware to perform different functions without requiring pre-programming for each specific application.
Solution Approach 2:
The patent creates universal analog building blocks that can be configured to perform multiple analog functions through programmable interconnections. Instead of having separate fixed-function analog circuits for each operation, a single reconfigurable analog block can be programmed to serve different purposes, maintaining reliable analog functionality while gaining dynamic adaptability.
3Adaptability or versatility
If multiple semiconductor chips are used to enable complex communication between analog and digital circuits, then functional capability is achieved, but chip area and manufacturing cost increase
Solution Approach 1:
The patent merges analog and digital circuits onto a single semiconductor chip, integrating reconfigurable analog building blocks with reconfigurable digital logic blocks and a unified configuration interface. This integration eliminates the need for multiple separate chips and their interconnections, reducing total chip area while maintaining the capability for complex analog-digital communication through on-chip interconnects.
Data Source
AI summary
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.