RCANFD_C_CFOFFSET
(RCANFD_C_CFOFFSET + (0x30 * (ch)) + (0x10 * (idx)))
(RCANFD_C_CFOFFSET + 0x04 + (0x30 * (ch)) + (0x10 * (idx)))
(RCANFD_C_CFOFFSET + 0x08 + (0x30 * (ch)) + (0x10 * (idx)) + (0x04 * (df)))