Nuvoton /NUC1xx_registers /CAN /CAN_IF1_CMASK

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Interpret as CAN_IF1_CMASK

Description

IF1 Command Mask Registers

Fields

DAT_B	Access Data Bytes [7:4] Direction = Write 1 = Transfer Data Bytes [7:4] to Message Object. 0 = Data Bytes [7:4] unchanged. Direction = Read 1 = Transfer Data Bytes [7:4] to IF1 Message Buffer Register. 0 = Data Bytes [7:4] unchanged.
DAT_A	Access Data Bytes [3:0] Direction = Write 1 = Transfer Data Bytes [3:0] to Message Object 0 = Data Bytes [3:0] unchanged. Direction = Read 1 = Transfer Data Bytes [3:0] to IF1 Message Buffer Register. 0 = Data Bytes [3:0] unchanged.
TxRqstOrNewDat	Access Transmission Request Bit when Direction = Write 1 = Set TxRqst bit. 0 = TxRqst bit unchanged. Note: If a transmission is requested by programming bit TxRqst/NewDat in the IF1 Command Mask Register, bit TxRqst in the IF2 Message Control Register will be ignored. Access New Data Bit when Direction = Read 1 = Clear NewDat bit in the Message Object 0 = NewDat bit remains unchanged. Note : A read access to a Message Object can be combined with the reset of the control bits IntPnd and NewDat. The values of these bits transferred to the IF1 Message Control Register always reflect the status before resetting these bits.
ClrIntPnd	Clear Interrupt Pending Bit Direction = Write When writing to a Message Object, this bit is ignored. Direction = Read 1 = Clear IntPnd bit in the Message Object. 0 = IntPnd bit remains unchanged.
Control	Control Access Control Bits Direction = Write 1 = Transfer Control Bits to Message Object. 0 = Control Bits unchanged Direction = Read 1 = Transfer Control Bits to IF1 Message Buffer Register. 0 = Control Bits unchanged.
Arb	Access Arbitration Bits Direction = Write 1 = Transfer Identifier + Dir + Xtd + MsgVal to Message Object 0 = Arbitration bits unchanged. Direction = Read 1 = Transfer Identifier + Dir + Xtd + MsgVal to IF1 Message Buffer Register. 0 = Arbitration bits unchanged.
Mask	Access Mask Bits Direction = Write 1 = Transfer Identifier Mask + MDir + MXtd to Message Object. 0: = Mask bits unchanged. Direction = Read 1 = Transfer Identifier Mask + MDir + MXtd to IF1 Message Buffer Register. 0 = Mask bits unchanged.
WROrRD	Write / Read 1 = Write: Transfer data from the selected Message Buffer Registers to the Message Object addressed by the Command Request Register. 0 = Read: Transfer data from the Message Object addressed by the Command Request Register into the selected Message Buffer Registers.

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