13
13-36
Ver.0.10
(3) RM (Remote) bit (D2)
To handle remote frames in the message slot, set this bit to 1. The message slot may be set to
handle remote frames in following two ways:
• Set for remote frame transmission
The data set in the message slot is transmitted as a remote frame. When the CAN module
finished transmitting, the slot is automatically changed to a data frame receive slot. However,
if a data frame is received before the CAN module finished sending a remote frame, the data is
stored in the message slot and the remote frame is not transmitted.
• Set for remote frame reception
Remote frames are received. The processing to be performed after receiving a remote frame
is selected by RL (automatic response inhibit) bit.
(4) RL (Automatic Response Inhibit) bit (D3)
This bit is effective when the message slot has been set as a remote frame receive slot. It selects
the processing to be performed after receiving a remote frame. When this bit is set to 0, the
message slot automatically changes to a transmit slot after receiving a remote frame and
transmits the data set in it as a data frame. When this bit is set to 1, the message slot stops
operating after receiving a remote frame.
Note: Always set this bit to 0 unless the message slot is set for remote frame reception.
(5) RA (Remote Active) bit (D4)
This bit functions differently for slots 0-13 and slots 14 and 15.
• Slots 0-13
This bit is set to 1 when the message slot is set for remote frame transmission (reception).
Then it is cleared to 0 when remote frame transmission (reception) is completed.
• Slots 14, 15
The function of this bit differs depending on how the CAN Control Register's BCM (BasicCAN
mode) bit is set. If BCM = 0 (normal operation), this bit is set to 1 when the message slot is set
for remote frame transmission (reception). If BCM = 1 (BasicCAN), this bit shows which type of
frame is received. In BasicCAN mode, the received data is stored in slots 14 and 15 for both
data frame and remote frame. If RA = 0, it means that the frame stored in the slot is a data
frame; if RA = 1, it means that the frame stored in the slot is a remote frame.
CAN MODULE
13.2 CAN Module Related Registers
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...