HD6417750RF240V Datasheet, PDF (465/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 15 Controller Area Network (HCAN)
15.6 DTC Interface
The DTC can be activated by the reception of a message in HCAN mailbox 0. When DTC transfer
ends after DTC activation has been set, the RXPR0 and RFPR0 flags are acknowledge
automatically. An interrupt request due to a receive interrupt from the HCAN cannot be sent to the
CPU in this case. Figure 15.15 shows a DTC transfer flowchart.
DTC initialization
DTC enable register setting
DTC register information setting
: Settings by user
: Processing by hardware
Message reception in HCAN’s
mailbox 0
DTC activation
End of DTC transfer?
No
Yes
RXPR and RFPR clearing
Transfer counter = 0
No
or DISEL = 1?
Yes
Interrupt to CPU
End
Figure 15.15 DTC Transfer Flowchart
Rev. 7.00 Sep. 11, 2009 Page 429 of 566
REJ09B0211-0700