h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 490

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 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. Since an HCAN interrupt is initiated immediately when interrupts
are enabled, IRR0 should be cleared.
Rev. 2.00 Dec. 05, 2005 Page 452 of 724
REJ09B0200-0200
Message transmission method initialization
LAFM setting (receive identifier mask setting)
MC[x] setting (receive identifier setting)
MBIMR setting (interrupt mask setting)
IMR setting (interrupt mask setting)
Can bus communication enabled
Initialization of HCAN module
recessive bits received?
MCR0 = 1 (automatic)
GSR3 = 1 (automatic)
IRR0 = 1 (automatic)
Mailbox initialization
Hardware reset
GSR3 = 0 & 11
MBCR setting
GSR3 = 0?
BCR setting
Clear IRR0
MCR0 = 0
Yes
Yes
Figure 14.6 Hardware Reset Flowchart
No
No
Bit configuration mode
Period in which BCR, MBCR, etc.,
are initialized
: Settings by user
: Processing by hardware