Section 13 Controller Area Network (HCAN)
Rev. 3.00 Mar. 14, 2006 Page 485 of 804
REJ09B0104-0300
(1)
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.
No
No
Hardware reset
MCR0 = 1 (automatic)
IRR0 = 1 (automatic)
GSR3 = 1 (automatic)
MCR0 = 0
GSR3 = 0?
Yes
GSR3 = 0 & 11
recessive bits received?
Can bus communication enabled
Yes
Bit configuration mode
Period in which BCR, MBCR, etc.,
are initialized
: Settings by user
: Processing by hardware
Initialization of HCAN module
Clear IRR0
BCR setting
MBCR setting
Mailbox initialization
Message transmission method initialization
IMR setting (interrupt mask setting)
MBIMR setting (interrupt mask setting)
MC[x] setting (receive identifier setting)
LAFM setting (receive identifier mask setting)
Figure 13.6 Hardware Reset Flowchart
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Содержание H8SX series
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