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STM8S Scheda tecnica(PDF) 414 Page - STMicroelectronics

Il numero della parte STM8S
Spiegazioni elettronici  STM8S Series and STM8AF Series 8-bit microcontrollers
PDF  467 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
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STM8S Scheda tecnica(HTML) 414 Page - STMicroelectronics

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Controller area network (beCAN)
RM0016
414/467
DocID14587 Rev 14
CAN mailbox filter match index register (CAN_MFMIR)
Address offset: See Table 66. and Table 67.
Reset value: 0xXX
Note:
This register is implemented only in receive mailboxes. In transmit mailboxes, the
CAN_MCSR register is mapped at this location.
Bit 2 RQCP Request completed
Set by hardware when the last request (transmit or abort) has been performed.
Cleared by software writing a “1” or by hardware on transmission request.
Note: This bit has the same value as the corresponding RQCPx bit of the CAN_TSR register.
Clearing this bit clears all the status bits (TXOK, ALST and TERR) in the CAN_MCSR register
and the corresponding RQCPx and TXOKx bits in the CAN_TSR register.
Bit 1 ABRQ Abort request for mailbox
Set by software to abort the transmission request for the corresponding mailbox.
Cleared by hardware when the mailbox becomes empty.
Setting this bit has no effect when the mailbox is not pending for transmission.
Bit 0 TXRQ Transmit mailbox request
Set by software to request the transmission for the corresponding mailbox.
Cleared by hardware when the mailbox becomes empty.
7
654
3210
FMI[7:0]
r
rrr
rrrr
Bits 7:0 FMI[7:0] Filter match index
This register contains the index of the filter the message stored in the mailbox passed through. For
more details on identifier filtering please refer to Section 23.6.3: Identifier filtering - Filter Match
Index paragraph.



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