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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