HD64F2638F20J Datasheet, PDF (717/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 16 Controller Area Network (HCAN)
Initialization
IRR0 clearing
BCR setting
MBCR setting
Mailbox (RAM) initialization
Interrupt settings
Receive data setting
Arbitration field setting
Local acceptance filter settings
: Settings by user
: Processing by hardware
Message reception
No
(Match of identifier
in mailbox?)
Yes
Same RXPR = 1?
Yes
No
Data frame?
No
Yes
RXPR
IRR1 = 1
IMR1 = 1?
Yes
No
Interrupt to CPU
Unread message
RXPR, RFPR = 1
IRR2 = 1, IRR1 = 1
IMR2 = 1?
Yes
No
Interrupt to CPU
Message control read
Message data read
Clear all RXPRn bits of mailbox for which
receive interrupt requests are enabled
by MBIMR
IRR1 = 0
End of reception
Message control read
Message data read
Clear all RXPRn bits of mailbox for which
receive interrupt requests are enabled
by MBIMR
IRR2 = 0, IRR1 = 0
Transmission of data frame corresponding
to remote frame
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 667 of 1458