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STR720 Fiches technique(PDF) 221 Page - STMicroelectronics |
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STR720 Fiches technique(HTML) 221 Page - STMicroelectronics |
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221 / 401 page ![]() STR720 - CONTROLLER AREA NETWORK (CAN) 221/401 IFn Command Mask Registers (CAN_IFn_CMR) Address offset: 24h (CAN_IF1_CMR), 84h (CAN_IF2_CMR) Reset Value: 0000h The control bits of the IFn Command Mask Register specify the transfer direction and select which of the IFn Message Buffer Registers are source or target of the data transfer. 15 14 13 12 11 10 9 8 7 654 32 10 Reserved rw rw rw rw rw rw rw rw Bits 15:8 Reserved These are reserved bits. These bits are always read as ‘0’ and must always be written with ‘0’. Bit 7 WR/RD: Write / Read 0: Read: Transfer data from the Message Object addressed by the Command Request Register into the selected Message Buffer Registers. 1: Write: Transfer data from the selected Message Buffer Registers to the Message Object addressed by the Command Request Register. 1 |
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