Operation; Transfer Modes; Table 7.4 Dmac Transfer Modes - Renesas H8S/2368 Series Hardware Manual

7.5

Operation

7.5.1

Transfer Modes

Table 7.4 lists the DMAC transfer modes.
Table 7.4 DMAC Transfer Modes
Transfer Mode
Short Dual address mode
address
•
1-byte or 1-word transfer
mode
for a single transfer
request
•
Specifies the transfer
destination/source
address and performs
transfer in 2 bus cycles
(1) Sequential mode
•
Memory address
incremented or
decremented by 1 or 2
•
Number of transfers: 1 to
65,536
(2) Idle mode
•
Memory address fixed
•
Number of transfers: 1 to
65,536
(3) Repeat mode
•
1-byte or 1-word transfer
for a single transfer
request
•
Memory address
incremented or
decremented by 1 or 2
•
Continues transfer after
sending number of
transfers (1 to 256) and
restoring the initial value
Rev. 2.00, 05/03, page 228 of 820
Transfer Source
•
TPU channel 0 to 5
compare match/input
capture A interrupt
•
SCI transmission
complete interrupt
•
SCI reception
complete interrupt
•
A/D converter
conversion end
interrupt
•
External request
Remarks
•
Up to 4 channels can
operate independently
•
External request
applies to channel B
only
•
Single address mode
applies to channel B
only