D12320VF25V Datasheet, PDF (242/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 7 Data Transfer Controller
φ
DTC activation
request
DTC
request
Address
Vector read
Data transfer
Read Write
Data transfer
Read Write
Transfer
information
read
Transfer Transfer
information information
write
read
Transfer
information
write
Figure 7.12 DTC Operation Timing (Example of Chain Transfer)
7.3.10 Number of DTC Execution States
Table 7.9 lists execution phases for a single DTC data transfer, and table 7.10 shows the number
of states required for each execution phase.
Table 7.9 DTC Execution Phases
Mode
Normal
Repeat
Block transfer
Vector Read
I
1
1
1
Register Information
Internal
Read/Write
Data Read Data Write Operations
J
K
L
M
6
1
1
3
6
1
1
3
6
N
N
3
N: Block size (initial setting of CRAH and CRAL)
Rev.7.00 Feb. 14, 2007 page 208 of 1108
REJ09B0089-0700