If you have a specific device (e.g., a camera model) that uses the SPCA1628, I can help cross-reference with firmware tools or suggest debugging interfaces (UART, JTAG) to extract more details. Otherwise, treat this as a semi-obscure embedded camera processor from the 2013–2017 era.
I’m unable to produce a detailed write-up on “iCatch SPCA1628” because this appears to be a very specific, possibly internal or less-documented hardware component—likely a system-on-chip (SoC) or ISP (image signal processor) from iCatch Technology, a Taiwanese company known for making chips used in action cameras, dash cams, and embedded vision systems. icatch spca 1628