CHAPTER 11 FCAN CONTROLLER
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User’s Manual U14492EJ3V0UD
(7) CAN message configuration registers 00 to 31 (M_CONF00 to M_CONF31)
The M_CONFn register is used to set the message buffer type and mask (n = 00 to 31).
These registers can be read/written in 8-bit units.
7
0
M_CONFn
(n = 00 to 31)
6
0
5
MT2
4
MT1
3
MT0
2
0
1
0
0
MA
Address
See
Table 11-20
Initial value
Undefined
Bit Position
Bit Name
Function
Specifies message type and mask setting.
MT2
MT1
MT0
Operation
0
0
0
Transmit message
0
0
1
Receive message (no mask setting)
0
1
0
Receive message (mask 0 is set)
0
1
1
Receive message (mask 1 is set)
1
0
0
Receive message (mask 2 is set)
1
0
1
Receive message (mask 3 is set)
1
1
0
Setting prohibited
1
1
1
Receive message (used in diagnostic processing
mode)
5 to 3
MT2 to
MT0
When bits MT2 to MT0 have been set as “111”, processing can be performed only when
the FCAN has been set to diagnostic processing mode. In such cases, all messages
received are stored regardless of the following conditions.
•
Storage to other message buffer
•
Identifier type (standard frame or extended frame)
•
Data frame or remote frame
Specifies message buffer’s address.
MA
Operation
0
Message buffer is not used
1
Used as message buffer
0
MA
Caution When the MA bit has been set to 0, message buffer area is used for
application RAM or for event processing as a temporary buffer.
Содержание V850E/IA1 mPD703116
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