Dtc Interface; Figure 15.15 Dtc Transfer Flowchart - Hitachi H8S/2628 Hardware Manual

15.6

DTC Interface

The DTC can be activated by the reception of a message in HCAN mailbox 0. When the DTC
activation is set and DTC transfer ends, the RXPR0 and RFPR0 flags are automatically cleared.
An interrupt request is not sent to the CPU by a reception interrupt from the HCAN. Figure 15.15
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?
Yes
RXPR and RFPR clearing
Transfer counter = 0
or DISEL = 1?
Yes
Interrupt to CPU
End

Figure 15.15 DTC Transfer Flowchart

: Settings by user
: Processing by hardware
No
No
Rev. 1.0, 09/02, page 401 of 568