Fujitsu FR81S User Manual
CHAPTER 41: CAN
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: CAN
FUJITSU SEMICONDUCTOR CONFIDENTIAL
26
[bit4] LBack : Loopback Mode
LBack
Function
0
Disables loopback mode.
[Initial value]
1
Enables loopback mode.
[bit3] Silent : Silent Mode
Silent
Function
0
Disables silent mode.
[Initial value]
1
Enables silent mode.
[bit2] Basic : Basic mode
Basic
Function
0
Disables basic mode.
[Initial value]
1
Enables basic mode.
The IF1 register will be used as a transmission message, and the IF2 register will be used
as a reception message.
[bit1, bit0] : Reserved bit
The read value is always "0". When writing to these bits, set "0".
Notes:
⋅
After setting "1" to the Test bit of the CAN control register (CTRLR), write into the register. The test
mode is valid when the Test bit of the CAN control register (CTRLR) is set to "1". The CAN
controller transits from the test mode to the normal mode when the Test bit of the CAN control register
(CTRLR) is set to "0".
⋅
Messages cannot be sent when the Tx bit is set to a value other than "00".
MB91520 Series
MN705-00010-1v0-E
1719