upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 746

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 19
746
Figure 19-35
Caution
Note
Re-initialization
After setting the CAN module to the initialization mode, avoid setting the
module to another operation mode immediately after. If it is necessary to
immediately set the module to another operation mode, be sure to access
registers other than the CnCTRL and CnGMCTRL registers (e.g., set a
message buffer).
OPMODE: Normal operation mode, normal operation mode with ABT,
receive-only mode, single-shot mode, self-test mode
Preliminary User’s Manual U17566EE1V2UM00
CnMASK register.
CnBRP register,
CnBTR register.
CnIE register.
INIT mode?
OPMODE.
START
Clear
Set
Set
Set
Yes
No
Set CnCTRL register.
Clear CCERC bit = 0
Set CCERC bit = 1
(set OPMODE
Initialize message
Set CCERC bit.
register clear?
CnERC and
CnINFO
buffers.
END
CAN Controller (CAN)
Yes
bit)
No