802
Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
(21) CnMCONFm - CANn message configuration register m
The CnMCONFm register is used to specify the type of the message buffer and to set a mask.
Notes: 1.
The “message buffer that has already received a data frame” is a receive message buffer
whose the CnMCTRLm.DN bit has been set to 1.
Remark:
A remote frame is received and stored, regardless of the setting of OWS and DN. A remote
frame that satisfies the other conditions (ID matches, RTR = 0, TRQ = 0) is always received
and stored in the corresponding message buffer (interrupt generated, DN flag set,
MDLC[3:0] updated, and recorded to the receive history list).
Note:
The RTR bit specifies the type of message frame that is transmitted from a message buffer
defined as a transmit message buffer. Even if a valid remote frame has been received, the RTR
bit of the transmit message buffer that has received the frame remains cleared to 0. Even if a
remote frame whose ID matches has been received from the CAN bus with the RTR bit of the
transmit message buffer set to 1 to transmit a remote frame, that remote frame is not received
or stored (interrupt generated, DN flag set, the MDLC0 to MDLC3 bits updated, and recorded to
the receive history list).
After reset: Undefined
R/W
Address: refer to
7
6
5
4
3
2
1
0
CnMCONFm
OWS
RTR
MT2
MT1
MT0
0
0
MA0
OWS
Overwrite control bit
0
The message buffer
that has already received a data frame
Note
is not
overwritten by a newly received data frame. The newly received data
frame is discarded.
1
The message buffer that has already received a data frame
Note
is
overwritten by a newly received data frame.
RTR
Remote frame request bit
Note
0
Transmit a data frame.
1
Transmit a remote frame.
MT2
MT1
MT0
Message buffer type setting bit
0
0
0
Transmit message buffer
0
0
1
Receive message buffer (no mask setting)
0
1
0
Receive message buffer (mask 1 set)
0
1
1
Receive message buffer (mask 2 set)
1
0
0
Receive message buffer (mask 3 set)
1
0
1
Receive message buffer (mask 4 set)
Other than above
Setting prohibited
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
Page 1053: ......