Datasheet

Section 7 DMA Controller (DMAC)
Rev.6.00 Mar. 18, 2009 Page 220 of 980
REJ09B0050-0600
Bit Bit Name Initial Value R/W Description
4 DTDIR 0 R/W Data Transfer Direction
Used in combination with the SAE bit in
DMABCR to specify the data transfer direction
(source or destination). The function of this bit is
therefore different in dual address mode and
single address mode.
• When SAE = 0
0: Transfer with MAR as source address and
IOAR as destination address
1: Transfer with IOAR as source address and
MAR as destination address
• When SAE = 1
0: Transfer with MAR as source address and
DACK pin as write strobe
1: Transfer with DACK pin as read strobe and
MAR as destination address