beautypg.com

18 remote request receiving register (rrtrr), Register function – FUJITSU F2MCTM-16LX User Manual

Page 490

background image

474

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