upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 661

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Caution:
Remark:
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 CnC-
TRL 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
CnMASK register.
CnBRP register,
CnBTR register.
CnIE register.
INIT mode?
OPMODE.
START
Clear
Set
Set
Set
Yes
User’s Manual U16702EE3V2UD00
Figure 16-58: Re-initialization
Chapter 16 FCAN Controller
No
Initialize message buffers.
Set CnCTRL register.
Clear CCERC = 0
Set CCERC bit.
Set CCERC = 1
(Set OPMODE)
register clear?
CnERC and
CnINFO
END
Yes
No
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