Intel E3815 FH8065301567411 Data Sheet

Intel

®

 Atom™ Processor E3800 Product Family

1046

Datasheet

MIPI-CSI-2 devices are camera serial interface devices. They are categorized into two 
types, a CSI transmitter device with Camera Control Interface (CCI) slave and CSI 
receiver device with CCI master. 

Data transfer by means of MIPI-CSI is unidirectional that is, from transmitter to 
receiver. CCI data transfer is bidirectional between the CCI slave and master.

Camera Serial Interface Bus (CSI) is a type of serial bus that enables transfer of data 
between a Transmitter device and a receiver device. The CSI device has a point-to-
point connections with another CSI device by means of D-PHYs and as shown in 

.

Similarly, CCI (Camera Control Interface bus) is a type of serial bus that enables 
transfer back and forth between the master CCI and a Slave CCI Unit.

D-PHY data lane signals are transferred point-to-point differentially using two signal 
lines and a clock lane. There are two signaling modes, a high speed mode that operates 
at 1000Mbs and a low power mode that works at 10Mbs. The mode is set to low power 
mode and a stop state at start up/power up. Depending on the desired data transfer 
type, the lanes switch between high and low power modes. 

Device e.g. a Camera containing 

the CSI transmitter and CCI slave

Device e.g. an application engine 

or base band containing the CSI 

receiver and the CCI master

Unidirectional High 

Speed Data Link

N Data Lanes

Where N may be 

1, 2, 3, or 4

CSI Transmitter

CSI Receiver

DataN+

DataN-

Clock+

Clock-

SCL

SDA

DataN+

DataN-

Clock+
Clock-

SCL

SDA

400kHz Bidirectional

Control Link

CCI Slave

CCI Master

Data1+

Data1-

Data1+

Data1-