Renesas RH850 Series

Application Note
R01AN6029EJ0100 Rev.1.0 Page
1
of 42
May 10, 2017
RH850 Series
CAN Transmit Procedure (CAN FD Mode)
Summary
This document describes an example of a procedure for transmitting CAN using the RH850 series. Please refer to the
notes in the latest user's manual hardware edition for the settings of each register.
Operation Confirmed Devices
This document applies to the RH850 series.
The variables described in the text are as follows.
Table 1-1 Target Devices and Variables
Variable
Target MCU
RH850/E2x
RH850/E1M-S2
RH850/P1M-E
RS-CAN FD channel number
m
0~4
0~3
0~2
GAFLIDj, GAFLMj, GAFLP0j,
GAFLP1j Register numbers
j
0~15
0~15
0~15
Transmit/Receive FIFO buffer
number
k
0~14
0~11
0~8
Receive FIFO buffer number
x
0~7
0~7
0~7
Receive buffer number
q
0~79
0~63
0~47
Transmit buffer number
p
0~79
0~63
0~47
RAM test number
r
0~63
0~63
0~63
GAFLCFGi、GTINTSTSi
register number
i
0
0
0
Number of each status register
y
0~2
0,1
0,1
The functions marked with "★" in the text are applicable to cases where 2 or more channels are installed.
In the text, CFD is omitted from the register names.
R01AN6029EJ0100
Rev.1.0