General Status Register (Gsr) - Renesas H8SX/1520 Series Hardware Manual

Section 13 Controller Area Network (HCAN)
Bit Bit Name
0 MCR0
13.3.2

General Status Register (GSR)

GSR indicates the status of the HCAN.
Bit
Bit Name
Initial Value
R/W
Bit Bit Name

7 to 4
3 GSR3
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Initial
Value R/W
1 R/W
7 6 5
— — —
0 0 0
R R R
Initial
Value R/W
All 0 R
1 R
Description
Reset Request
When this bit is set to 1, the HCAN enters reset
mode. For details, refer to section 13.4.1,
Hardware and Software Resets.
[Setting conditions]
•
Writing 1 (software reset)
[Clearing condition]
•
When 0 is written to this bit while bit GSR3 in
GSR is 1
4 3 2
— GSR3 GSR2
0 1 1
R R R
Description
Reserved
These are read-only bits and cannot be modified.
Reset Status
Indicates whether the HCAN module is in the
normal operation state or the reset state. This bit
cannot be modified.
[Setting conditions]
•
When entering configuration mode after the
HCAN internal reset has finished
•
Sleep mode
[Clearing condition]
•
When entering the normal operation state after
bit MCR0 in MCR is cleared (note that there is
delay between clearing bits MCR0 and GSR3.)
1 0
GSR0
GSR1
0 0
R R