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Chapter 19
CAN Controller (CAN)
Preliminary User’s Manual U17566EE1V2UM00
Caution
To request forced shut down, the GOM bit must be cleared to 0 immediately
after the EFSD bit has been set to 1. If access to another register (including
reading the CnGMCTRL register) is executed without clearing the GOM bit
immediately after the EFSD bit has been set to 1, the EFSD bit is forcibly
cleared to 0, and the forced shut down request is invalid.
Caution
The GOM bit is cleared only in the initialization mode.
(b) Write
EFSD
Bit enabling forced shut down
0
Forced shut down by GOM bit = 0 disabled.
1
Forced shut down by GOM bit = 0 enabled.
GOM
Global operation mode bit
0
CAN module is disabled from operating.
1
CAN module is enabled to operate.
15
14
13
12
11
10
9
8
CnGMCTRL
0
0
0
0
0
0
Set
EFSD
Set
GOM
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Clear
GOM
Set EFSD
EFSD bit setting
0
No change in EFSD bit.
1
EFSD bit set to 1.
Set GOM
Clear GOM
GOM bit setting
0
1
GOM bit cleared to 0.
1
0
GOM bit set to 1.
Other than above
No change in GOM bit.
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