GC-76/GC-106 GAS LEAK DETECTION CORE USER MANUAL
21
7.
Protocols
7-1 MIPI Protocol
The GC-76 core uses 4-lane MIPI which includes 1 pair of source-synchronized
clocks (M, MIPI_CLK-), and 4 pairs of data lines (MIP, MIPI_
DATA0-, MIP, MIPI_DATA1-, MIP, MIPI_DATA2-, MIP,
MIPI_DATA3-). The data format and electrical specifications conform to CSI-2
and D-PHY Protocols.
The clock signal enters the high-speed mode at the beginning of each frame and
exits at the end of the frame. The inter-frame is in the low-power mode (the data
and clock lines are both at 1.2V high level). The CLK frequency of the thermal
core is 200MHz.
After the core is powered on it outputs MIPI digital video. Taking 640 x 512
temperature measurement as an example, the core is set to CDS_2 digital video,
the output data format is RAW8 (standard MIPI CSI-2 protocol), and the area
array should be set to (1280 x 2) *512, which needs to be spliced into 1280 x 512
x 16-bit data by the back end, with the low byte first. The first 640x 16-bits of a
line of valid data are image data, and the last 640 x 16-bits are temperature data.
