19 receive overrun register (rovrr), Register function – FUJITSU F2MCTM-16LX User Manual
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21.4.19
Receive Overrun Register (ROVRR)
If RCx of the reception complete register (RCR) is 1 when completing storing of a
received message in the message buffer (x), ROVRx becomes 1, indicating that
reception has overrun.
■
Register Configuration
Figure 21.4-19 Configuration of the Receive overrun Register (ROVRR)
■
Register Function
Writing 0 to ROVRx results in ROVRx = 0. Writing 1 to ROVRx is ignored. After checking that reception
has overrun, write 0 to ROVRx to set it to 0.
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
ROVRR1(Upper)
CAN1:
00008D
H
RVOR15
RVOR14
RVOR13
RVOR12
RVOR11
RVOR10
RVOR9
RVOR8
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
ROVRR1(Lower)
CAN1:
00008C
H
RVOR7
RVOR6
RVOR5
RVOR4
RVOR3
RVOR2
RVOR1
RVOR0
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