Datasheet

Section 8 Data Transfer Controller
Rev.6.00 Sep. 27, 2007 Page 322 of 1268
REJ09B0220-0600
Figure 8.2 shows a flowchart of DTC operation, and table 8.2 summarizes the chain transfer
conditions (combinations for performing the second and third transfers are omitted).
Start
Read DTC vector
Next transfer
Read register information
Data transfer
Write register information
Clear activation flag
CHNE = 1?
End
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Transfer counter = 0
or DISEL = 1?
Clear DTCER
Interrupt exception
handling
CHNS = 0?
DISEL = 1?
Transfer
counter = 0?
Figure 8.2 Flowchart of DTC Operation