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R01UH0336EJ0102 Rev.1.02
Page 1048 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 20 CAN Controller (FCN)
20.2 Features
• Compliant with ISO 11898
• Standard frame and extended frame transmission/reception enabled
• Transfer rate: 1 Mbps max.
• 32 message buffers per channel
• Receive/transmit history list function
(with enable flag for each message buffer individually)
• Automatic block transmission function
• Multi-buffer receive block function
• Mask setting of 8 patterns is possible for each channel, applicable for data
and remote frames
• Data bit time, communication baud rate, and sample point can be controlled
by FCN module bit-rate prescaler register (FCNnCMBRPRS) and bit-rate
register (FCNnCMBTCTL)
– As an example, the following sample-point configurations can be
configured:
66.7%, 70.0%, 75.0%, 80.0%, 81.3%, 85.0%, 87.5%
– Baud rates in the range of 10 kbps up to 1 Mbps can be configured.
• Enhanced features:
– Each message buffer can be configured to operate as a transmit or a
receive message buffer.
– A transmission request can be aborted by clearing the dedicated
transmit-request flag of the concerned message buffer. Supported by
transmission abort interrupt, on successful abortion.
– Automatic block transmission operating mode (ABT)
– Time stamp function of FCN channels 0 and 1, collaborated with timers
capture channels
– Centralized global data new bit monitor register, collecting all data new
flags to be read from one location