Fujitsu F2MCTM-16LX Bedienungsanleitung PDF herunterladen (Seite 468)

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CHAPTER 21 CAN CONTROLLER

21.4 Classifying CAN Controller Registers

There are 3 types of CAN controller registers;

• Overall control registers

• Message buffer control registers

• Message buffers

■ Overall Control Registers

The overall control registers are the following 4 registers;

• Control status register (CSR)

• Last event indicator register (LEIR)

• Receive and transmit error counter (RTEC)

• Bit timing register (BTR)

■ Message Buffer Control Registers

The message buffer control registers are the following 14 registers;

• Message buffer valid register (BVALR)

• IDE register (IDER)

• Transmission request register (TREQR)

• Transmission RTR register (TRTRR)

• Remote frame receiving wait register (RFWTR)

• Transmission cancel register (TCANR)

• Transmission complete register (TCR)

• Transmission interrupt enable register (TIER)

• Reception complete register (RCR)

• Remote request receiving register (RRTRR)

• Receive overrun register (ROVRR)

• Reception interrupt enable register (RIER)

• Acceptance mask select register (AMSR)

• Acceptance mask registers 0 and 1 (AMR0 and AMR1)

■ Message Buffers

The message buffers are the following 3 registers;

• ID register x (x = 0 to 15) (IDRx)

• DLC register x (x = 0 to 15) (DLCRx)

• Data register x (x = 0 to 15) (DTRx)

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