Datasheet

Section 7 DMA Controller (DMAC)
Rev.7.00 Dec. 24, 2008 Page 190 of 698
REJ09B0074-0700
Figure 7.10 illustrates operation in block transfer mode when MARB is designated as a block area.
A
ddress T
A
A
ddress B
A
Transfer
Address T
B
Notes:
Address T
A
= L
A
Address T
B
= L
B
Address B
A
= L
A
+ SAIDE · (–1)
SAID
· (2
DTSZ
· (M · N–1))
Address B
B
= L
B
+ DAIDE · (–1)
DAID
· (2
DTSZ
· (N–1))
L
A
= Value set in MARA
L
B
= Value set in MARB
N = Value set in ETCRA
M = Value set in ETCRAH and ETCRAL
Address B
B
1st block
2nd block
Nth block
Block area
Consecutive transfer
of M bytes or words
is performed in
response to one
request
Figure 7.10 Operation in Block Transfer Mode (BLKDIR = 0)