THEMIS
THEMIS User Manual - Rev. First Edition: 1.0 - Last Edition: 2.2 - Author: A.R. - Reviewed by S.R. -Copyright © 2022 SECO S.p.A.
28
CSI Camera Connectors
THEMIS with NXP iMX8 Processor includes an Image Processing Subsystem, that can be used for video applications, like video-preview,
video recording and frame grabbing. It is possible to access to the two embedded video input ports through as many FFC/FPC optional
connectors, type OMRON p/n XF2M-1815-1A which are able to accept 18 poles 0.5mm pitch FFC cables.
All CSI differential pairs are managed by i.MX8 CSI Host Controller
’
s Camera
Input Ports #0 and #1 which are exposed respectively on CN14 and C41.
Signals description equivalent for Port #0 and Port #1:
CSI_Px_DP0 / CSI_Px_DN0: CSI2 Camera serial input, Receiving Input Differential pair #0.
CSI_Px_DP1 / CSI_Px_DN1: CSI2 Camera serial input, Receiving Input Differential pair #1.
CSI_Px_DP2 / CSI_Px_DN2: CSI2 Camera serial input, Receiving Input Differential pair #2.
CSI_Px_DP3 / CSI_Px_DN3: CSI2 Camera serial input, Receiving Input Differential pair #3.
CSI_Px_CKP / CSI_Px_CKN: CSI Camera, Clock input differential pair.
MIPI_CSIx_PWDN: External camera module Power down signal. It is an active high signal with
electrical level +1.8V_RUN.
MIPI_CSIx_MCKL_OUT: Master Clock, it is managed by CSI Host Controller. It is suggested,
however, to use camera modules with onboard crystal / oscillator, and avoid using this signal.
Indeed, it could cause problems for EMI compliance requirements.
MIPI_CSIx_I2C0_SCL: general purpose I2C Bus clock line. Output signal, electrical level
+1.8V_RUN with a 2k2
Ω
pull-up resistor.
MIPI_CSIx_I2C0_SDA: general purpose I2C Bus data line. Bidirectional signal, electrical level
+1.8V_RUN with a 2k2
Ω
pull-up resistor.
MIPI_CSIx_RST_B: External camera module reset signal output, it is an active low signal.
CSI Camera Connector #0 CN14
Pin Signal
Pin Signal
1
CSI_P0_DN3
10
CSI_P0_DN0
2
CSI_P0_DP3
11
CSI_P0_DP0
3
CSI_P0_DN2
12
GND
4
CSI_P0_DP2
13
MIPI_CSI0_PWDN
5
CSI_P0_DN1
14
MIPI_CSI0_MCKL_OUT
6
CSI_P0_DP1
15
MIPI_CSI0_I2C0_SCL
7
CSI_P0_CKN
16
MIPI_CSI0_I2C0_SDA
8
CSI_P0_CKP
17
MIPI_CSI0_RST_B
9
GND
18
+3.3V_RUN
CSI Camera Connector #1 CN41
Pin Signal
Pin Signal
1
CSI_P1_DN3
10
CSI_P1_DN0
2
CSI_P1_DP3
11
CSI_P1_DP0
3
CSI_P1_DN2
12
GND
4
CSI_P1_DP2
13
MIPI_CSI1_PWDN
5
CSI_P1_DN1
14
MIPI_CSI1_MCKL_OUT
6
CSI_P1_DP1
15
MIPI_CSI1_I2C0_SCL
7
CSI_P1_CKN
16
MIPI_CSI1_I2C0_SDA
8
CSI_P1_CKP
17
MIPI_CSI1_RST_B
9
GND
18
+3.3V_RUN
