stm32 /stm32n6 /STM32N657 /FDCAN1 /FDCAN_CCCR

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Interpret as FDCAN_CCCR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x0)INIT 0 (B_0x0)CCE 0 (B_0x0)ASM 0 (B_0x0)CSA 0 (B_0x0)CSR 0 (B_0x0)MON 0 (B_0x0)DAR 0 (B_0x0)TEST 0 (B_0x0)FDOE 0 (B_0x0)BRSE 0 (B_0x0)PXHD 0 (B_0x0)EFBI 0 (B_0x0)TXP 0 (B_0x0)NISO

TEST=B_0x0, ASM=B_0x0, PXHD=B_0x0, CSR=B_0x0, CCE=B_0x0, INIT=B_0x0, TXP=B_0x0, BRSE=B_0x0, MON=B_0x0, NISO=B_0x0, EFBI=B_0x0, FDOE=B_0x0, DAR=B_0x0, CSA=B_0x0

Description

FDCAN CC control register

Fields

INIT

Initialization

0 (B_0x0): Normal operation

1 (B_0x1): Initialization is started (while FDCAN_CCCR.INIT = 1 CCE bit is automatically cleared when INIT bit is cleared)

CCE

Configuration change enable

0 (B_0x0): The CPU has no write access to the protected configuration registers

1 (B_0x1): The CPU has write access to the protected configuration registers (while FDCAN_CCCR.INIT = 1 CCE bit is automatically cleared when INIT bit is cleared)

ASM

ASM restricted operation mode

0 (B_0x0): Normal CAN operation

1 (B_0x1): Restricted operation mode active

CSA

Clock stop acknowledge

0 (B_0x0): No clock stop acknowledged

1 (B_0x1): FDCAN may be set in power down by stopping APB clock and kernel clock

CSR

Clock stop request

0 (B_0x0): No clock stop is requested

1 (B_0x1): Clock stop requested. When clock stop is requested, first INIT and then CSA is set

MON

Bus monitoring mode

0 (B_0x0): Bus monitoring mode is disabled

1 (B_0x1): Bus monitoring mode is enabled

DAR

Disable automatic retransmission

0 (B_0x0): Automatic retransmission of messages not transmitted successfully enabled

1 (B_0x1): Automatic retransmission disabled

TEST

Test mode enable

0 (B_0x0): Normal operation, register TEST holds reset values

1 (B_0x1): Test mode, write access to register TEST enabled

FDOE

FD operation enable

0 (B_0x0): FD operation disabled

1 (B_0x1): FD operation enabled

BRSE

FDCAN bitrate switching

0 (B_0x0): Bitrate switching for transmissions disabled

1 (B_0x1): Bitrate switching for transmissions enabled

PXHD

Protocol exception handling disable

0 (B_0x0): Protocol exception handling enabled

1 (B_0x1): Protocol exception handling disabled

EFBI

Edge filtering during bus integration

0 (B_0x0): Edge filtering disabled

1 (B_0x1): Two consecutive dominant tq required to detect an edge for hard synchronization

TXP

If this bit is set, the FDCAN pauses for two CAN bit times before starting the next transmission after successfully transmitting a frame.

0 (B_0x0): Disabled

1 (B_0x1): Enabled

NISO

Non ISO operation

0 (B_0x0): CAN FD frame format according to ISO11898-1

1 (B_0x1): CAN FD frame format according to Bosch CAN FD Specification V1.0

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