HD64F2145 Datasheet, PDF (189/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

7.5.6 Operation Timing
ø
DTC activation
request
DTC request
Address
Vector read
Data transfer
Read Write
Transfer information
read
Transfer information
write
Figure 7.9 DTC Operation Timing (Example in Normal Mode or Repeat Mode)
ø
DTC activation
request
DTC request
Address
Vector read
Data transfer
Read Write Read Write
Transfer information
read
Transfer information
write
Figure 7.10 DTC Operation Timing (Example of Block Transfer Mode,
with Block Size of 2)
ø
DTC activation
request
DTC request
Address
Vector read
Data transfer
Read Write
Data transfer
Read Write
Transfer information
read
Transfer
information
write
Transfer
information
read
Transfer information
write
Figure 7.11 DTC Operation Timing (Example of Chain Transfer)
Rev. 2.0, 08/02, page 149 of 788