HD6417750RF240V Datasheet, PDF (449/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 15 Controller Area Network (HCAN)
IRR0 Clearing: The reset interrupt flag (IRR0) is always set after a power-on reset or recovery
from software standby mode. As an HCAN interrupt is initiated immediately when interrupts are
enabled, IRR0 should be cleared.
Hardware reset
MCR0 = 1 (automatic)
IRR0 = 1 (automatic)
GSR3 = 1 (automatic)
: Settings by user
: Processing by hardware
Initialization of HCAN module
Clear IRR0
BCR setting
MBCR setting
Mailbox initialization
Message transmission method initialization
Bit configuration mode
Period in which BCR, MBCR, etc.,
are initialized
MCR0 = 0
GSR3 = 0?
No
Yes
IMR setting (interrupt mask setting)
MBIMR setting (interrupt mask setting)
MC[x] setting (receive identifier setting)
LAFM setting (receive identifier mask setting)
GSR3 = 0 & 11
recessive bits received?
No
Yes
Can bus communication enabled
Figure 15.6 Hardware Reset Flowchart
Rev. 7.00 Sep. 11, 2009 Page 413 of 566
REJ09B0211-0700