Datasheet

Section 11 Data Transfer Controller (DTC)
REJ09B0465-0300 Rev. 3.00 Page 361 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
φ
DTC activation
request
DTC
request
A
ddress
Vector read
Read Write Read Write
Data transfer Data transfer
Transfer
information
write
Transfer
information write
Transfer
information read
Transfer
information
read
Figure 11.12 DTC Operation Timing (Example of Chain Transfer)
11.5.7 Number of DTC Execution States
Table 11.8 lists execution state for a single DTC data transfer, and table 11.9 shows the number of
states required for each execution status.
Table 11.8 DTC Execution State
Mode
Vector Read
I
Register
Information
Read/Write
J
Data Read
K
Data Write
L
Internal
Operations
M
Normal 1 6 1 1 3
Repeat 1 6 1 1 3
Block transfer 1 6 N N 3
Legend:
N: Block size (initial setting value of CRAH and CRAL)