Datasheet

Rev. 3.00, 03/04, page 171 of 830
DTC activation
request
DTC request
Address
Vector read
Read Write Read Write
Transfer information
read
Transfer information
write
Data transfer
φ
Figure 7.10 DTC Operation Timing (Example of Block Transfer Mode,
with Block Size of 2)
DTC activation
request
DTC request
Address
Vector read
Read Write
Read Write
Transfer information
read
Transfer
information
write
Transfer
information
read
Transfer information
write
Data transfer Data transfer
φ
Figure 7.11 DTC Operation Timing (Example of Chain Transfer)
7.6.7 Number of DTC Execution States
Table 7.8 lists the execution status for a single DTC data transfer, and table 7.9 shows the number
of states required for each execution status.
Table 7.8 DTC Execution Status
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 of CRAH and CRAL)