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Chapter 13
FCAN Interface Function
Preliminary User’s Manual U14913EE1V0UM00
(2)
Message configuration registers 00 to 63 (M_CONF00 to M_CONF63)
The M_CONFm registers specify the message type, mask link and CAN module assignment of the
corresponding message m (m = 00 to 63).
These registers can be read/written 8-bit units.
Figure 13-25: Message Configuration Registers 00 to 63 (M_CONF00 to M_CONF63)
Notes:
1. The register address is calculated according to the following formula:
effective address = P address offset
2. Mask number of the linked CAN module specified by MA1, MA0 bits.
3. CAN module does not handle a message buffer of this type.
4. A message buffer of this type is only handled if the linked CAN module is set to diagnostic
mode. In this case all messages received on the CAN bus will be stored in this message
buffer, regardless whether they could have been stored in other message buffers as well.
Even the type of the identifier (standard or extended) and the type of the frame (remote or
data frame) are not respected. In normal operation mode the message buffer is not han-
dled.
5. If the message buffer is not assigned to a CAN module, it can be used as temporary buffer
of the application or by the CAN bridge ELISA.
Remark:
m = 00 to 63
7
6
5
4
3
2
1
0
Address
Offset
Note 1
Initial value
M_CONFm
0
0
MT2
MT1
MT0
0
MA1
MA0
014H
+ (m
×
20H)
undef.
Bit Position
Bit Name
Function
5 to 3
MT2 to MT0 Specifies the message type and mask link.
1, 0
MA1, MA0
Assigns the message buffer to a CAN module.
MT2
MT1
MT0
Message type and mask link
0
0
0
Transmit message
0
0
1
Receive message, no mask linked
0
1
0
Receive message, mask 0 linked
Note 2
0
1
1
Receive message, mask 1 linked
Note 2
1
0
0
Receive message, mask 2 linked
Note 2
1
0
1
Receive message, mask 3 linked
Note 1
2
1
1
0
Reserved
Note 3
1
1
1
Receive message in diagnostic mode (type 7)
Note 4
MA1
MA0
CAN module assignment
0
0
Message buffer is not assigned to a CAN module.
Note 5
0
1
Message buffer is assigned to CAN module 1.
1
0
Message buffer is assigned to CAN module 2.
1
1
Message buffer is assigned to CAN module 3.
Summary of Contents for V850E/CA1 ATOMIC
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