Inquiry about Programming and Communication with MA35 chip

Hello,

I'm new to ARM9 processors and I'm looking to work with the MA35 chip. I have a couple of questions regarding this:

How can I flash code onto the MA35 chip?
What is the procedure for communication between the MA35 processor and M4?
I'd appreciate any guidance, documentation, or resources that can help me understand these processes better.

Thank you in advance for your assistance!