2) page 280 written
01111 = RXINT0, RXINT1
Question: what is RXINT0, RXINT1

EWIN4:EWIN0: Enhanced Window Address bits
These bits map the group of 16 banked CAN SFRs into access bank addresses 0F60-0F6Dh.
Exact group of registers to map is determined by binary value of these bits.

Mode 0:
Unimplemented: Read as '0'

Mode 1, 2:
01111 = RXINT0, RXINT1

Note 1: These bits can only be changed in Configuration mode. See Register 23-1 to change to Configuration mode.
2: This bit is used in Mode 2 only.
3: FIFO length of 4 or less will cause this bit to be set.