HD64F2638F20J Datasheet, PDF (711/1512 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 (after hardware reset only)
IRR0 clearing
BCR setting
MBCR setting
Mailbox (RAM) initialization
Message transmission method setting
Interrupt settings
Transmit data setting
Arbitration field setting
Control field setting
Data field setting
Message transmission wait
TXPR setting
Bus idle?
No
Yes
Message transmission
GSR2 = 0 (during transmission only)
Transmission completed?
No
Yes
TXACK = 1
IRR8 = 1
IMR8 = 1?
Yes
No
Interrupt to CPU
Clear TXACK
Clear IRR8
End of transmission
: Settings by user
: Processing by hardware
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Figure 16-7 Transmission Flowchart
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