Full-Mask Partial-Bit-Field Technique for Low-Latency IC Register Writes
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Solution Overview
Problem
Current communication protocols between integrated circuit devices, such as those used in RF front end devices, face challenges in managing interfaces efficiently, particularly in achieving low latency and concurrent operations, which are essential for modern communication systems.
Innovation Solution
The implementation of a Full-Mask Partial-Bit-Field (FM-PBF) technique, where a mask field with a specific number of bits is used to identify bit locations in a control register for writing corresponding bit values from a control-bit field, allowing for reduced latency by optimizing the number of bits transmitted in write operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the mask field is reduced in size to match the control-bit field, then the transmission time is reduced, but the ability to selectively write to specific bit locations is lost
Solution Approach 1:
The mask field is segmented into two distinct fields: a full mask field that maintains the complete bit pattern for selective writing capability, and a partial control-bit field that contains only the necessary data bits. This segmentation allows the system to transmit minimal data while preserving full masking functionality through the separate mask field.
2Productivity
If the control-bit field is reduced to only necessary bits, then the transmission efficiency is improved, but the protocol complexity increases
Solution Approach 1:
A separate full mask field acts as an intermediary that carries the complete bit pattern information, while the reduced control-bit field carries only the essential data. This intermediary mask field simplifies the control-bit field and enables more efficient transmission without losing functionality.
3Adaptability or versatility
If the mask field has more bits than the control-bit field, then selective writing to control register is enabled, but the packet size increases
Solution Approach 1:
The packet is segmented into a full mask field for selective writing control and a partial control-bit field for data transmission. This segmentation allows the mask field to maintain full size for versatility while the control-bit field is minimized to reduce overall packet size.
Data Source
AI summary
Systems, methods, and apparatus for data communication are provided. An apparatus maybe configured to generate a mask field in a packet to be transmitted through an interface to a slave device, the mask field having a first number of bits, provide a control-bit field in the packet, the control-bit field having a second number of bits, where the second number of bits is less than the first number of bits, and transmit the packet through the interface. The packet may be addressed to a control register of the slave device. The control register may have the first number of bits. Each bit in the control-bit field may correspond to a bit of the control register that is identified by the mask field.