Figure 8.5 Flowchart Of Dtc Operation - Renesas H8S/2368 Series Hardware Manual

Figure 8.5 shows a flowchart of DTC operation, and table 8.3 summarizes the chain transfer
conditions (combinations for performing the second and third transfers are omitted).
Read DTC vector
Read register information
Data transfer
Write register information
CHNE = 1?
Transfer counter = 0
or DISEL = 1?
Clear activation flag
Start
Yes
No
Yes
No
End

Figure 8.5 Flowchart of DTC Operation

Next transfer
CHNS = 0?
No
Transfer
counter = 0?
No
DISEL = 1?
No
Clear DTCER
Interrupt exception
handling
Rev. 2.00, 05/03, page 285 of 820
Yes
Yes
Yes