AF_Control (CANFD) Register

AF_Control (CANFD) Register Description

The acceptance filter control register defines which acceptance filters to use. Each acceptance filter ID register (AF_ID_Reg_n) and Acceptance Filter Mask Register (AF_Mask_Reg_n) pair is associated with a [UAFn] bit. * When the [UAFn] bit is 1, the corresponding acceptance filter pair is used for acceptance filtering. When the [UAFn] bit is 0, the corresponding acceptance filter pair is not used for acceptance filtering. * To modify an acceptance filter pair in Normal mode, the corresponding [UAFn] bit in this register must be set to 0. * After the acceptance filter is modified, the corresponding [UAFn] bit must be set to 1. * If all [UAFn] bits are set to 0, then received messages are not stored in the Rx buffers. * If the [UAFn] bits are changed from a 1 to 0 during reception of a message, then that message might or might not be stored. Enables the use of acceptance filter mask pair: 0: indicates AF_Mask_Reg_n and AF_ID_Reg_n pair is not used for acceptance filtering. 1: indicates acceptance filter mask register (AF_Mask_Reg_n or M_n) and acceptance filter ID register (AF_Mask_ID_n or F_n) pair is used for acceptance filtering. Software Driver name: AFR Alternate register name: Acceptance_Filter_Control_Register

AF_Control (CANFD) Register Bit-Field Summary