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ST STM32F103 series Reference Manual

ST STM32F103 series
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Controller area network (bxCAN) RM0008
679/1128 DocID13902 Rev 15
CAN receive FIFO mailbox identifier register (CAN_RIxR) (x=0..1)
Address offsets: 0x1B0, 0x1C0
Reset value: 0xXXXX XXXX
All RX registers are write protected.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
STID[10:0]/EXID[28:18] EXID[17:13]
rrrrrrrrrrrrrrrr
1514131211109876543210
EXID[12:0] IDE RTR
Res.
rrrrrrrrrrrrrrr
Bits 31:21 STID[10:0]/EXID[28:18]: Standard identifier or extended identifier
The standard identifier or the MSBs of the extended identifier (depending on the IDE bit
value).
Bits 20:3 EXID[17:0]
: Extended identifier
The LSBs of the extended identifier.
Bit 2 IDE: Identifier extension
This bit defines the identifier type of message in the mailbox.
0: Standard identifier.
1: Extended identifier.
Bit 1 RTR
: Remote transmission request
0: Data frame
1: Remote frame
Bit 0 Reserved, must be kept at reset value.

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ST STM32F103 series Specifications

General IconGeneral
BrandST
ModelSTM32F103 series
CategoryMicrocontrollers
LanguageEnglish

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