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Receive FIFO mailbox high-byte data register (CAN_RXMDHx) (x=0..1)
Offset address: 0x1BC, 0x1CC
Reset value: 0xXXXX XXXX, X=undefined bit
Field
Name
R/W
Description
7:0
DATABYTE4
R
Data Byte 4 of the Message
15:8
DATABYTE5
R
Data Byte 5 of the Message
23:16
DATABYTE6
R
Data byte 6 of the Message
31:24
DATABYTE7
R
Data byte 7 of the Message
Note:
All receiving mailbox registers are read-only.
CAN filter register
CAN filter control register (CAN_FCTRL)
Offset address: 0x200
Reset value: 0x2A1C 0E01
Field
Name
R/W
Description
0
FINITEN
R/W
Filter Init Mode Enable
0: Normal mode
1: Initialization mode
7:1
Reserved
13:8
CAN2SB
R/W
CAN2 Start Bank
They define the start bank for the CAN2 interface (Slave) in the range 0 to
27.
Note
:
When CAN2SB[5:0] = 28d, all the filters to CAN1 can be used.
When CAN2SB[5:0] is set to 0, all the filters to CAN2 can be used.
31:14
Reserved
Note:
The non-reserved bit of this register is completely controlled by software.
CAN filter mode configuration register (CAN_FMCFG)
Offset addres: 0x204
Reset value: 0x0000 0000
Field
Name
R/W
Description
27:0
FMCFGx R/W
Filter Mode Configure
The value of x is within 0-27.
0: Identifier mask bit mode
1: Identifier list mode
31:28
Reserved
Note: Only when CAN_FCTRL (FINITEN =1) is set to make the filter in initialization mode, can this
register be written.
CAN filter bit width configuration register (CAN_FSCFG)
Offset address: 0x20C
Reset value: 0x0000 0000