FUJITSU MB91460 SERIES FR60 User Manual
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Chapter 34 CAN Controller
2.Register Description
(Note)
The Data Length Code of a Message Object must be defined the same as in all the corresponding
objects with the same identifier at other nodes. When the Message Handler stores a data frame, it
will write the DLC to the value given by the received message.
MsgLst
Message Lost (only valid for Message Objects with direction = receive)
0
No message lost since last time this bit was reset by the CPU.
1
The Message Handler stored a new message into this object when NewDat was still set, the
CPU has lost a message.
RxIE
Receive Interrupt Enable
0
IntPnd will be left unchanged after a successful reception of a frame.
1
IntPnd will be set after a successful reception of a frame.
TxIE
Transmit Interrupt Enable
0
IntPnd will be left unchanged after the successful transmission of a frame.
1
IntPnd will be set after a successful transmission of a frame.
IntPnd
Interrupt Pending
0
This message object is not the source of an interrupt.
1
This message object is the source of an interrupt. The Interrupt Identifier in the Interrupt Regis-
ter will point to this message object if there is no other interrupt source with higher priority.
RmtEn
Remote Enable
0
At the reception of a Remote Frame, TxRqst is left unchanged.
1
At the reception of a Remote Frame, TxRqst is set.
TxRqst
Transmit Request
0
This Message Object is not waiting for transmission.
1
The transmission of this Message Object is requested and is not yet done.
DLC3-0
Data Length Code
0-8
Data Frame has 0-8 data bytes.
9-15
Data Frame has 8 data bytes.
Data 0
1st data byte of a CAN Data Frame
Data 1
2nd data byte of a CAN Data Frame
Data 2
3rd data byte of a CAN Data Frame
Data 3
4th data byte of a CAN Data Frame
Data 4
5th data byte of a CAN Data Frame
Data 5
6th data byte of a CAN Data Frame
Data 6
7th data byte of a CAN Data Frame
Data 7
8th data byte of a CAN Data Frame