We recently published the VIP Newsletter for Q4 2018, containing trending topics, leading solutions, in depth technical articles, videos, webinars, and updates on next generation protocols. The newsletter covers content on PCIe 5.0, Arm® AMBA® 5 ACE5 and AXI5, CCIX and next generation MIPI and display protocols and applications ranging from AI, Cloud, Display, Storage and Networking. In case you missed the latest buzz on Verification IP, you can read it here.
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Posted in ACE, AMBA, Audio, Automotive, AXI, Camera, CCIX, CHI, Data Center, Debug, DesignWare, Display, events, HDCP, HDMI, Interconnects, Interface Subsystems, MIPI, Mobile SoC, MPHY, PCIe, Processor Subsystems, Soundwire, Storage, Test Suites, Uncategorized
This year, MIPI DevCon was held in Bangalore, India and Hsinchu City, Taiwan in October. Synopsys MIPI protocol experts hosted several demos at each conference showcasing implementation experiences, use cases and application examples within mobile, automotive, IoT and mixed reality applications.
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Posted in Audio, Automotive, C-PHY, Camera, CSI, D-PHY, I2S, I3C, Interface Subsystems, MIPI, Mobile SoC, MPHY, SlimBus, Soundwire, Unipro
MIPI DevCon 2016 was successfully held at Mountain View, California on 14-15th Sep, 2016. Synopsys MIPI protocol experts were there demonstrating our MIPI design and verification solutions for wide spectrum of markets ranging from IoT, to mobile, automotive, and consumer. During the conference Synopsys had several presentations. One of the papers presented by Synopsys was based on a customer case study that provide an overview and successful adoption of the MIPI SoundWire VIP and Test Suites to achieve comprehensive verification and coverage closure on their latest MIPI design.
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Posted in Audio, Automotive, C-PHY, Camera, CSI, D-PHY, events, I2S, I3C, Interface Subsystems, MIPI, Mobile SoC, MPHY, SlimBus, Soundwire, Test Suites, UFS, Unipro
MIPI SoundWire provides an optional mechanism for transporting register operations at higher bandwidth than mandatory command mechanism. Bulk Register Access (BRA) protocol is a particular format of data transport to achieve the higher bandwidth. While normal commands can only be driven at the rate of one command per frame, Bulk Register Access provides the option to read/write as many as 511 registers in one frame. So a clock frequency of 5MHz and frame size of 256*16(4096 BitSlots or 2048 clock periods) will increase the effective rate of data transfer to approximately 1.2 MBps. MIPI SoundWire supports a frequency of up to 12 MHz, so the bandwidth can be even higher. In this blog I’ll focus on what a Bulk Register Access payload stream looks like and how it can be used to achieve higher bandwidth.
BRA Payload Stream
Since BRA is in no way related to actual audio transport we have the freedom to choose any values of word length and sample interval as per our needs. However, there are some restrictions as our aim is to transport a minimum of 11 bytes even in the worst case scenario (with 11 bytes we are only accessing 1 byte which is defeating the whole purpose of BRA, a normal command in this case would be more efficient). To use as many bits available in a frame for transporting data, sample word length can be set equal to hwidth and sample interval equal to number of columns. HStop can be set to max column and HStart to column 0 or 1 when lane 0 is being used. Hence the specification recommends that Port 0 should support all values of word length from 1 to 16 as it provides the most efficient packing of data.
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Posted in MIPI, Soundwire, Uncategorized
Here, we describe how easy it is to integrate and validate a SoundWire design using Synopsys SoundWire VIP Test Suite.
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Posted in Audio, Interface Subsystems, MIPI, Mobile SoC, Soundwire
In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats, including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM), are target applications for MIPI Soundwire. Later, we discussed Digital Audio Streams and Channels. Here, we will talk about the merits MIPI Soundwire protocol has over other available digital audio interfaces.
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Posted in Audio, Interface Subsystems, Methodology, MIPI, Mobile SoC, Soundwire
In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM) are target applications for MIPI Soundwire. Here we will discuss Digital Audio Streams and Channels.
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Posted in Audio, Interface Subsystems, Methodology, MIPI, Mobile SoC, Soundwire
In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM) are target applications for MIPI Soundwire. In the last blog post on Soundwire, we discussed Pulse Code Modulation.
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Posted in Audio, Interface Subsystems, Methodology, MIPI, Mobile SoC, Soundwire
In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM) are target applications for MIPI Soundwire.
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Posted in Audio, Interface Subsystems, Methodology, MIPI, Mobile SoC, Soundwire
MIPI Alliance has come up with a new protocol standard for sound interface called SoundWire. SoundWire is a robust, scalable, low complexity, low power, low latency, two-pin (clock and data) multi-drop bus that allows for the transfer of multiple audio streams and embedded control/commands. To understand its specification and design verification needs, it is important to understand basics of digital audio transmission.
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Posted in Audio, Interface Subsystems, Methodology, MIPI, Mobile SoC, Soundwire
