13
13-46
Rev.1.0
(5) RA (Remote active) bit (D4)
This bit functions differently between slots 0-13 and slots 14 and 15.
•
Slots 0-13
For slots which have been set for remote frame transmission (reception), this bit is set to 1.
Then when remote frame transmission (or reception) is completed, the bit is cleared to 0.
•
Slots 14 and 15
For these slots, the bit functions differently depending on how the CAN Control Register
BCM (BasicCAN mode) bit is set.
When BCM = 0 (normal mode)
: If the slot has been set to transmit (or receive) a
remote frame, this bit is set to 1.
When BCM = 1 (BasicCAN mode) : This bit shows which type of frame has been
received. When in BasicCAN mode, either slot
14 or 15 stores the received data regardless of
whether it is a data frame or a remote frame.
When RA = 0, it means that the frame stored in
the slot is a data frame;
when RA = 1, it means that the frame stored in
the slot is a remote frame.
(6) ML (Message lost) bit (D5)
This bit is effective for receive slots. It is set to 1 when the received data stored in the message
slot is overwritten by receive operation before being read out.
This bit is cleared by writing 0 in software.
(7) TRSTAT (Transmit/receive status) bit (D6)
This bit indicates that transmission or reception is in progress and the CAN module is accessing
the message slot. This bit is set to 1 when the message slot is being accessed or set to 0 when
not accessed.
•
For transmit slots
This bit is set to 1 when a transmit request for the message slot has been accepted, and
is cleared to 0 when arbitration fails, a CAN bus error occurs, or transmission finishes.
•
For receive slots
This bit is set to 1 when reception is in progress and the CAN module is storing the
received data in the message slot. Note that the value read out from the message slot
while this bit = 1 is indeterminate.
CAN MODULES
13.2 CAN Module Related Registers
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...