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CHAPTER 21 CAN CONTROLLER
21.4.18 Remote Request Receiving Register (RRTRR)
After a remote frame is stored in the message buffer (x), RRTRx becomes 1 (at the same
time as RCx setting to 1).
■ Register Configuration
Figure 21.4-18 Configuration of the Remote Request Receiving Register (RRTRR)
■ Register Function
●
Conditions for RRTRx = 0
• Write 0 to RRTRx.
• After a received data frame is stored in the message buffer (x) (at the same time as RCx setting to 1).
• Transmission by the message buffer (x) is completed (TCx of the transmission complete register (TCR)
is 1).
Writing 1 to RRTRx is ignored.
1 is read when a Read Modify Write instruction is performed.
Note:
If setting to 1 by completion of the receive operation and clearing to 0 by writing occur at the same
time, the bit is set to 1.
Address bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8 RRTRR1(Upper)
CAN1: 00008B
H
RRTR15 RRTR14 RRTR13 RRTR12 RRTR11 RRTR10 RRTR9 RRTR8
Reset value
0 0 0 0 0 0 0 0
B
R/WR/WR/WR/WR/WR/WR/WR/W
Address bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 RRTRR1(Lower)
CAN1: 00008A
H
RRTR7 RRTR6 RRTR5 RRTR4 RRTR3 RRTR2 RRTR1 RRTR0
Reset value
0 0 0 0 0 0 0 0
B
R/WR/WR/WR/WR/WR/WR/WR/W
R/W : Read/Write