ST STM32L4 5 Series User Manual

Controller area network (bxCAN) RM0351
1614/1830 DocID024597 Rev 5
CAN filter activation register (CAN_FA1R)
Address offset: 0x21C
Reset value: 0x0000 0000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. FFA27 FFA26 FFA25 FFA24 FFA23 FFA22 FFA21 FFA20 FFA19 FFA18 FFA17 FFA16
rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
FFA15 FFA14 FFA13 FFA12 FFA11 FFA10 FFA9 FFA8 FFA7 FFA6 FFA5 FFA4 FFA3 FFA2 FFA1 FFA0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:28 Reserved, must be kept at reset value.
Bits 27:0 FFAx
: Filter FIFO assignment for filter x
The message passing through this filter will be stored in the specified FIFO.
0: Filter assigned to FIFO 0
1: Filter assigned to FIFO 1
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res.
FACT2
7
FACT2
6
FACT2
5
FACT2
4
FACT2
3
FACT2
2
FACT2
1
FACT2
0
FACT1
9
FACT1
8
FACT1
7
FACT1
6
rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
FACT1
5
FACT1
4
FACT1
3
FACT1
2
FACT1
1
FACT1
0
FACT9 FACT8 FACT7 FACT6 FACT5 FACT4 FACT3 FACT2 FACT1 FACT0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:28 Reserved, must be kept at reset value.
Bits 27:0 FACTx
: Filter active
The software sets this bit to activate Filter x. To modify the Filter x registers (CAN_FxR[0:7]),
the FACTx bit must be cleared or the FINIT bit of the CAN_FMR register must be set.
0: Filter x is not active
1: Filter x is active

ST STM32L4 5 Series Specifications

General

Brand	ST
Model	STM32L4 5 Series
Category	Microcontrollers
Language	English