Datasheet

Section 8 EXDMA Controller (EXDMAC)
Rev.7.00 Mar. 18, 2009 page 373 of 1136
REJ09B0109-0700
Bit Bit Name Initial Value R/W Description
4
3
2
1
0
DARA4
DARA3
DARA2
DARA1
DARA0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Destination Address Repeat Area
These bits specify the destination address
(EDDAR) repeat area. The repeat area function
updates the specified lower address bits, leaving
the remaining upper address bits always the same.
A repeat area size of 2 bytes to 8 Mbytes can be
specified. The setting interval is a power-of-two
number of bytes. When repeat area overflow
results from incrementing or decrementing an
address, the lower address is the start address of
the repeat area in the case of address
incrementing, or the last address of the repeat area
in the case of address decrementing. If the DARIE
bit is set to 1, an interrupt can be requested when
repeat area overflow occurs.
00000: Not designated as repeat area
00001: Lower 1 bit (2-byte area) designated as
repeat area
00010: Lower 2 bits (4-byte area) designated as
repeat area
00011: Lower 3 bits (8-byte area) designated as
repeat area
00100: Lower 4 bits (16-byte area) designated as
repeat area
: :
10011: Lower 19 bits (512-kbyte area) designated
as repeat area
10100: Lower 20 bits (1-Mbyte area) designated as
repeat area
10101: Lower 21 bits (2-Mbyte area) designated as
repeat area
10110: Lower 22 bits (4-Mbyte area) designated as
repeat area
10111: Lower 23 bits (8-Mbyte area) designated as
repeat area
11×××: Setting prohibited
Legend:
×: Don’t care