r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 388

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 DMA Controller (DMAC)
Figure 7.13 illustrates operation in block transfer mode when MARB is designated as a block area.
Rev. 1.00 Sep. 19, 2008 Page 360 of 1270
REJ09B0466-0100
Address T
Address B
Legend:
Address
Address
Address
Address
Where :
T
T
B
B
L
L
N
M
A
A
A
B
A
B
A
B
Figure 7.13 Operation in Block Transfer Mode (BLKDIR = 0)
= L
= L
= L
= L
= Value set in MARA
= Value set in MARB
= Value set in ETCRB
= Value set in ETCRAH and ETCRAL
A
B
A
B
+ SAIDE · (–1)
+ DAIDE · (–1)
1st block
2nd block
Nth block
SAID
DAID
· (2
· (2
DTSZ
DTSZ
Consecutive transfer
of M bytes or words
is performed in
response to one
request
· (M·N – 1))
· (N – 1))
Transfer
Block area
Address T
Address B
B
B