[Canxmbntsvmcf](Time Stamp Values Message Control Field Register) - Toshiba TXZ+ Series Reference Manual

[CANxMBnTSVMCF](Time Stamp Values Message Control Field Register)

Bit Bit Symbol After Reset
31:16 TSV[15:0]
15:5 -
4 RTR
3:0 DLC[3:0]
The time stamp values do not need to be initially set.
The message control field needs no initial programming in the case of receive mailboxes. When a received
message is stored in the mailbox, <RTR> and <DLC[3:0]> are also stored in the message control field at the same
time. The transmission mailboxes need initial setting.
To change the message control field of a transmission mailbox (which is set to [CANxMBnID]<RFH>=1) after
enabling the mailbox, clear the [CANxMC]<MCn> bit to "0" and then disable the mailbox for the CAN controller
before writing a new <RTR> and <DLC[3:0]>. The message control field of the transmission mailbox set to
<RFH>=0 can be changed irrespective of the [CANxMC]<MCn> bit setting, but the user needs to check that the
[CANxTRS]<TRSn> bit is "0" before writing a new <RTR> and <DLC[3:0]>.
Type
Time stamp counter value
When message have been successfully received or transmitted, the 16-bit time stamp counter
- R/W values are stored. No value is set when message reception or transmission fails.
For the details of the entire time stamp counter function, Refer to "3.3.6Time Stamp Function".
- R Read as undefined.
Remote frame transmission request bit.
- R/W 0: Data frame
1: Remote frame
Data length code
Sets the data length (number of bytes) of messages
<DLC[3:0]>
0000
0001
0010
- R/W
0011
0100
0101
0110
0111
1000
When <DLC[3:0]> = 1001 or more is set, data length is processed as 8 bytes.
Function
Number
Corresponding data
of bytes
0byte None
1byte D0
2bytes D0,D1
3bytes D0,D1,D2
4bytes D0,D1,D2,D3
5bytes D0,D1,D2,D3,D4
6bytes D0,D1,D2,D3,D4,D5
7bytes D0,D1,D2,D3,D4,D5,D6
8bytes D0,D1,D2,D3,D4,D5,D6,D7
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TXZ+ Family
CAN Controller
2020-10-01
Rev. 1.0