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R01UH0336EJ0102 Rev.1.02
Page 1138 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
Figure 20-14
Re-initialization without Software Reset Function
Caution
When clearing the error counter (setting CNnCMCLERCF) during re-
initialization, clear it in either of the following states.
•
In initialization mode after the FCN module has started (setting
FCNnGMCLPWOM from FCNnGMCLPWOM = 0)
•
In initialization mode after all transmit requests have been cleared
according to the transmission abort processing in Figure 20-24 in operating
mode (In normal operating mode with ABT, clear all transmit requests
according to the transmission abort processing in Figure 20-25.)
No
Yes
START
END
Initialization mode?
Initialize message buffers
Clear
FCNnCMCLCTL.FCNnCMCLMDOF[2:0]
Set
FCNnCMBRPRS register and
FCNnCMBTCTL register
Set FCNnCMIECTL register
Set FCNnCMMKCTLx register
Set
FCNnCMCLCTL.FCNnCMCLMDOF[2:0]
Operating modes: Normal operating mode, normal operating mode with ABT,
receive-only mode, single-shot mode, self-test mode