HD64F2638F20J Datasheet, PDF (725/1512 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)
16.3.8 DTC Interface^*
Note: * The DTC is not implemented in the H8S/2635 Group.
The DTC can be activated by reception of a message in the HCAN’s mailbox 0. When DTC
transfer ends after DTC activation has been set, the RXPR0 and RFPR0 flags are acknowledge
signal automatically. An interrupt request due to a receive interrupt from the HCAN cannot be sent
to the CPU in this case. Figure 16-13 shows a DTC transfer flowchart.
DTC initialization
DTC enable register setting
DTC register information setting
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
: Settings by user
End
: Processing by hardware
Figure 16-13 DTC Transfer Flowchart
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 675 of 1458