HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 352

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 Data Transfer Controller
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).
Rev.6.00 Sep. 27, 2007 Page 322 of 1268
REJ09B0220-0600
Read register information
Write register information
Transfer counter = 0
Clear activation flag
Read DTC vector
or DISEL = 1?
Data transfer
CHNE = 1?
No
No
Start
End
Figure 8.2 Flowchart of DTC Operation
Yes
Yes
Next transfer
Interrupt exception
Clear DTCER
counter = 0?
DISEL = 1?
CHNS = 0?
No
No
No
handling
Transfer
Yes
Yes
Yes