Programmable PCB Voltage Regulators for Multi-Standard Memory Support
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Solution Overview
Problem
Current platform designs are limited in their ability to support multiple memory technologies, requiring separate printed circuit board designs for each memory technology, which complicates memory device testing and platform assembly.
Innovation Solution
A printed circuit board (PCB) with programmable voltage regulators and signal multiplexing circuitry that can accommodate multiple memory technologies by identifying the memory type and configuring the necessary interface modes and voltage settings, allowing a single platform to support various memory standards such as DDR3, DDR4, LPDDR3, and LPDDR4.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate printed circuit board designs are used for each memory technology, then each board can be optimized for its specific memory technology, but the overall device complexity and design variety increase significantly
Solution Approach 1:
The PCB is designed with universal interface circuitry that can support multiple memory technologies (DDR3, DDR4, LPDDR3, LPDDR4) through a single board design. The board includes programmable voltage regulators and signal routing that can be configured to match different memory standards, eliminating the need for separate PCB designs for each memory technology generation.
Solution Approach 2:
The platform incorporates dynamically reconfigurable interface circuitry that can adapt its electrical characteristics and signal timing based on the detected memory type. Voltage regulators can be programmed to output different voltage levels, and signal routing can be reconfigured through firmware or hardware switches to match the requirements of different memory standards.
2Device complexity
If a single printed circuit board design supports multiple memory technologies, then design complexity is reduced, but the difficulty of identifying and configuring the correct interface mode increases
Solution Approach 1:
The system performs preliminary detection of the memory type during the initialization phase before full operation begins. The interface circuitry includes detection logic that queries the memory device to identify its type, capacity, and electrical characteristics, allowing the system to pre-configure the appropriate interface mode before data transfer commences.
Solution Approach 2:
The platform incorporates feedback mechanisms where the memory device communicates its identity and requirements back to the controller. The controller uses this feedback information to automatically adjust voltage levels, signal timing, and interface configuration to match the specific memory technology being used.
3Adaptability or versatility
If programmable voltage regulators and signal multiplexing circuitry are added to support multiple memory technologies, then adaptability increases, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent combines multiple functions into unified circuitry: voltage regulation, signal multiplexing, and memory interface control are integrated into a single adaptable interface block. This consolidation reduces the overall component count and interconnection complexity compared to having separate dedicated circuits for each memory technology.
Solution Approach 2:
The interface circuitry uses programmable parameters (voltage levels, signal timing, impedance) that can be adjusted through software or firmware configuration rather than requiring hardware changes. This allows a single physical design to support multiple memory technologies by changing electrical parameters rather than adding complex switching circuitry.
Data Source
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AI summary
Techniques and mechanisms to exchange communications via a printed circuit board (PCB) between a processor device and a memory device. In an embodiment, the processor device is configured based on a memory type of the memory device to an interface mode of multiple interface modes each corresponding to a different respective one of multiple memory standards. A voltage regulator (VR) is programmed, based on the memory type, to a VR mode to provide one or more voltages to the memory device via a hardware interface on the PCB. In another embodiment, x signal lines of an interconnect disposed in or on the PCB are each coupled between the processor device and the memory device to one another. The value x is an integer equal to a total number of signals of a superset of sets of signals each specified by a different respective one of the multiple memory standards.