18 remote request receiving register (rrtrr), Register function – FUJITSU F2MCTM-16LX User Manual
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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/W
R/W
R/W
R/W
R/W
R/W
R/W
R/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/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W : Read/Write