4.26 CSI Expansion Connector
The J721E EVM supports different application specific camera expansion boards, which includes:
• Fusion1 Serial Capture Expansion
• Fusion2 Serial Capture Expansion
Common processor board supports to interface with these CSI expansion boards using connector of
QSH-020-01-L-D-DP-A-K with 5 mm mating height allowing CSI Expansion to be stacked on bottom side of
the processor board.
Camera Serial Interface CSI0 and CSI1 of J721E SoC is interfaced to this CSI expansion connector J52 on the
CP board. The Common Processor board supports the Auxiliary CSI expansion connector that is reserved for
CSI2 port of future J7 SoC.
Power (12 V and 3.3 V ), control GPIOs and reference clock to these CSI expansion boards are provided from
Common Processor board through CSI expansion connector. Optionally auxiliary 12 V can be supplied from
Common Processor board via terminal block (1757242) using external wire.
The I/O supply to these CSI expansion boards can be configured for both 3.3 V and 1.8 V using the DIP Switch
SW3 Position 7.
CSI_VIO_SEL
Sets I/O voltage for CSI2 Expansion Interface (LVCMOS signals)
‘0’ (OFF) = 1.8 V I/O Voltage
‘1’ (ON) = 3.3 V I/O Voltage
Figure 4-45. Dual I/O Voltage Selection for CSI Expansion Interface
J721E EVM Hardware Architecture
SPRUIS4D – MAY 2020 – REVISED MARCH 2022
Jacinto7 J721E/DRA829/TDA4VM Evaluation Module (EVM)
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