I am using crcu with sec engine 3.3 at platform P1020 and I have a question, see the following.
Accoring to the doc 'AN3645.pdf' (SEC 2/3x Descriptor Programmer’s Guide), &3.2 Descriptor Type 0001_0: common_nonsnoop (P20 ), see Single CRC at Table 12, there are 4 items:
1. 'Primary EU Context In' at L1
2. 'Data In ' at L3
3. 'CRC In' at E4
4. 'CRC Out' at L5
I don't clear what these words means.
When I do crc, I use 3 items as input and get 1 output.
3 input-items include: input-data, polynomial, and init-crc-in
1 outpu item: crc-out, as result
What's the relation between them?
Could you please give a detail about 4 items about Single CRC in 'AN3645.pdf'.
Also, what's the difference using Outbound or Inbound to do single crc ?