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Figure 8-14 illustrates operation in block transfer mode when MARA is designated as a block
area.
Address T
A
Address B
A
Legend
Address
T
= L
A
A
Address
T
= L
B
B
Address
B
= L
+ SAIDE · (–1)
A
A
Address
B
= L
+ DAIDE · (–1)
B
B
Where :
L
= Value set in MARA
A
L
= Value set in MARB
B
N
= Value set in ETCRB
M
= Value set in ETCRAH and ETCRAL
Figure 8-14 Operation in Block Transfer Mode (BLKDIR = 1)
294
Block area
Transfer
Consecutive transfer
of M bytes or words
is performed in
response to one
request
SAID
DTSZ
· (2
· (N–1))
DAID
DTSZ
· (2
· (M·N–1))
Address T
1st block
2nd block
Nth block
Address B
B
B
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