Shared Select Line for Multiple Peripheral Components
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Solution Overview
Problem
Existing synchronous serial communication systems face challenges in efficiently supporting communication with multiple peripheral components using a single chip select line, leading to increased complexity, cost, and size due to the need for multiple chip select logic wires.
Innovation Solution
The implementation of a synchronous serial communication controller and peripheral components that utilize a shared select line logic wire, allowing chip identification data to be transmitted on a data output logic wire to indicate the selected peripheral component, thereby managing communication with multiple peripherals using a single shared select line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate chip select logic wire is used for each peripheral component, then each peripheral component can be reliably selected and communicated with, but the device complexity, cost, and size increase due to the need for multiple chip select logic wires
Solution Approach 1:
The patent merges multiple chip select logic wires into a single shared select line that is commonly connected to multiple peripheral components. This consolidation reduces the number of separate connection wires needed, thereby decreasing device complexity and cost while maintaining the ability to reliably select individual peripherals through software-controlled chip identification data
Solution Approach 2:
The shared select line serves as a universal selection mechanism for multiple peripheral components simultaneously. Instead of having dedicated chip select wires for each peripheral, a single multi-functional select line can address and activate any connected peripheral by transmitting the appropriate chip identification data, reducing overall system complexity
2Adaptability or versatility
If a separate chip select logic wire is used for each peripheral component, then each peripheral component can be independently controlled, but the cost and size of the communication system increase
Solution Approach 1:
Multiple chip select logic wires are merged into a single shared select line, reducing the number of physical connections required. This merger lowers manufacturing cost and reduces the size of the communication system while preserving independent control capability through software-based peripheral identification
Solution Approach 2:
Chip identification data transmitted through the shared select line acts as an intermediary mechanism that enables independent peripheral control without requiring separate physical chip select wires. The identification data mediates between the controller and multiple peripherals, allowing selective addressing and control
Data Source
AI summary
A synchronous serial communication controller, a synchronous serial communication peripheral component, and a computer-implemented method enabling synchronous serial communication between the synchronous serial communication controller and the synchronous serial communication peripheral component are provided. The example synchronous serial communication controller includes a serial communication interface, configured with a clock logic wire, a data output logic wire, a data input logic wire, and a shared select line logic wire. The shared select line logic wire is electrically connected to a plurality of peripheral components. A selected peripheral component of the plurality of peripheral components is indicated by chip identification data transmitted on the data output logic wire.