Mipi Csi 2 Specification Pdf

 

The Camera Serial Interface (CSI) is a specification of the Mobile Industry Processor Interface (MIPI) Alliance. It defines an interface between a camera and a host processor. The latest active interface specifications are CSI-2 v3.0, CSI-3 v1.1 and CCS v1.0 which were released in 2019, 2014 and 2017 respectively.[1][2][3]

Standards[edit]

CSI-1[edit]

Mipi Csi 2 Specification Pdf

CSI-1 was the original standard MIPI interface for cameras. It emerged as an architecture to define the interface between a camera and a host processor. Its successors were MIPI CSI-2 and MIPI CSI-3, two standards that are still evolving.

MIPI CSI-2 - Free ebook download as PDF File (.pdf), Text File (.txt) or read book online for free. DRAFT MIPI Alliance Specification for CSI-2 P2 1 1 0 0 1 0 0 1.

Mipi csi-2 spec pdf

CSI-2[edit]

The MIPI CSI-2 v1.0 specification was released in 2005. It uses either D-PHY or C-PHY (Both standards are set by the MIPI Alliance) as a physical layer option. The protocol is divided into the following layers:

  1. Physical Layer (C-PHY/D-PHY)
  2. Lane Merger Layer.
  3. Low Level Protocol Layer.
  4. Pixel to Byte Conversion Layer
  5. Application Layer

In April 2017, the CSI-2 v2.0 specification was released. CSI-2 v2.0 brought support for RAW-16 and RAW-20 color depth, increase virtual channels from 4 to 32, Latency Reduction and Transport Efficiency (LRTE), Differential Pulse-Code Modulation (DPCM) compression and scrambling to reduce Power Spectral Density.[4]

In September 2019, the CSI-2 v3.0 specification was released. CSI-2 v3.0 introduced Unified Serial Link (USL), Smart Region of Interest (SROI), End-of-Transmission Short Packet (EoTp) and support for RAW-24 color depth.[5][6]

CSI-3[edit]

MIPI CSI-3 is a high-speed, bidirectional protocol primarily intended for image and video transmission between cameras and hosts within a multi-layered, peer-to-peer, UniPro-based M-PHY device network. It was originally released in 2012 and got re-released in version 1.1 in 2014.[7]

Camera Command Set (CCS)[edit]

The Camera Command Set (CCS) v1.0 specification was released on November 30, 2017. CCS defines a standard set of functionalities for controlling image sensors using CSI-2.[8][9]

Technology & Speeds[edit]

For EMI reasons the system designer can select between two different clock rates (a and b) in each of the M-PHY speed levels.[10]

M-PHY speedClock rateBit rate
Gear 1G1a1.25 Gbit/s
G1b1.49 Gbit/s
Gear 2G2a2.5 Gbit/s
G2b2.9 Gbit/s
Gear 3G3a5 Gbit/s
G3b5.8 Gbit/s

See also[edit]

References[edit]

  1. ^'MIPI Camera Serial Interface 2 (MIPI CSI-2)'. MIPI Alliance.
  2. ^'MIPI Camera Serial Interface 3 (MIPI CSI-3)'. MIPI Alliance.
  3. ^'MIPI Camera Command Set (MIPI CCS)'. MIPI Alliance.
  4. ^'MIPI Alliance Expands Popular CSI-2 Camera Specification Beyond Mobile'. MIPI Alliance. April 5, 2017.
  5. ^'New Version of Most Widely Used Camera and Imaging Interface—MIPI CSI-2—Designed to Build Capabilities for Greater Machine Awareness'. MIPI Alliance. September 26, 2019.
  6. ^'VIP Central > MIPI CSI-2 v3.0 is here! – The industry's First Comprehensive Solution for 5G, Imaging, Surveillance and Automotive'. blogs.synopsys.com. Retrieved 2019-09-28.
  7. ^MIPI Camera Serial Interface 3 (MIPI CSI-3)
  8. ^'MIPI Alliance Releases MIPI CCS, a New Specification that Streamlines Integration of Image Sensors in Mobile Devices'. MIPI Alliance. November 30, 2017.
  9. ^'An Interface to Make Installing Image Sensors Easier'. Electronic Design. 2017-11-30. Retrieved 2019-09-28.
  10. ^Understanding MIPI Alliance Interface Specifications


Retrieved from 'https://en.wikipedia.org/w/index.php?title=Camera_Serial_Interface&oldid=977963951'

Camera Serial Interface

The Camera Serial Interface (CSI) is a specification of the Mobile Industry Processor Interface (MIPI) Alliance. It defines an interface between a camera and a host processor. The latest active interface specification is CSI-3 which was released in 2012.

Different Standards of MIPI CSI Interface:

MIPI CSI-1 was the original standard MIPI interface for cameras. It emerged as an architecture to define the interface between a camera and a host processor. Its successors were MIPI CSI-2 and MIPI CSI-3, two standards that are still evolving.

MIPI CSI-2 v1.0 specification was released in 2005. It uses either D-PHY or C-PHY (Both standards are set by the MIPI Alliance) as a physical layer option. The protocol is divided into the following layers:

1. Physical Layer (C-PHY/D-PHY)

2. Lane Merger Layer.

3. Low Level Protocol Layer.

4. Pixel to Byte Conversion Layer

5. Application Layer

MIPI CSI-3 is a high-speed, bidirectional protocol primarily intended for image and video transmission between cameras and hosts within a multi-layered, peer-to-peer, UniPro-based M-PHY device network. It was originally released in 2012 and got re-released in version 1.1 in 2014.

What is the difference between MIPI CSI-2 and CSI-3?

MIPI CSI-2 V1.3


Figure-1 and figure-2 depicts MIPI CSI-2 variants D-PHY, C-PHY and Combo PHY. Following are the features of MIPI CSI-2 V1.3 :

• PHY variants supported: D-PHY 1.2, C-PHY 1.0 or 'Combo PHY'

• Number of Virtual Channels: Four (4)

• Control Interface: I2C

• Line based transmission (Easy implementation, low gate count, matched data rates for sensor and link)

• Interrupt type: In-Band

• Supports RGB, RAW, YUV, JPEG

• Embedded Data

Mipi Csi 2 Specification Pdf

• CRC/ECC for payload & Header Protection

MIPI CSI-3 V1.1

Figure-3 depicts MIPI CSI-3 interface. Following are the features of MIPI CSI-3 V1.1 :

Mipi Csi 2 Specification Pdf Editor

• M-PHY 3.0

• Virtual Channels: 32

• In-Band Control

• Packet Based Transmission

• In-Band Interrupts

• Supports RGB, RAW, YUV, JPEG

• Embedded Data

Mipi Csi 2 Specification Pdf Converter

• Notification channels for metadata, audio etc.

• CCI bridging

• Guaranteed delivery of data

You can continue to learn more about MIPI CSI interfaces at the below links:

https://mipi.org/specifications/csi-2

https://www.electronicdesign.com/communications/understanding-mipi-alliance-interface-specifications

http://www.rfwireless-world.com/Terminology/MIPI-CSI-2-vs-MIPI-CSI-3.html



Key words: #MIPI #CSI #CameraSerialInterface #Camera #CameraModule




CM Technology Company Ltd, which was founded in 2014, is a professional manufacturer specializing in designing, developing, manufacturing and marketing of all kinds of camera modules.


Your most trusted partner for camera module solutions

Reader


#telecommunications #iot #robotics #ai #embedded #hardware #medicaldevice #drone #artificialintelligence #security #surveillance #video #imaging #3d #facialrecognition #camera #electronics #robot #consumerElectronics #machinevision #deeplearning #vr #ar #virtualreality #accesscontrol #RaspberryPi


Website: www.camera-module.com

Email: info@camera-module.com

Skype: baggiowang0214