Datasheet
Appendix B Internal I/O Registers 
Rev.6.00 Sep. 27, 2007 Page 1121 of 1268 
REJ09B0220-0600 
DMACR0A—DMA Control Register 0A  H'FF02  DMAC 
  (Not supported in H8S/2321) 
DMACR0B—DMA Control Register 0B  H'FF03  DMAC 
  (Not supported in H8S/2321) 
DMACR1A—DMA Control Register 1A  H'FF04  DMAC 
  (Not supported in H8S/2321) 
DMACR1B—DMA Control Register 1B  H'FF05  DMAC 
  (Not supported in H8S/2321) 
15
DTSZ
0
R/W
14
SAID
0
R/W
13
SAIDE
0
R/W
12
BLKDIR
0
R/W
11
BLKE
0
R/W
8
—
0
R/W
10
—
0
R/W
9
—
0
R/W
0
1
Byte-size transfer  
Word-size transfer
Data Transfer Size 
0
1
Source Address Increment/Decrement 
0
1
0
1
MARA is fixed   
MARA is incremented after a data transfer
MARA is fixed
MARA is decremented after a data transfer
0
1
Block Direction/Block Enable
Reserved
Only 0 should be written 
to these bits
0
1
0
1
Transfer in normal mode     
Transfer in block transfer mode, destination side is block area
Transfer in normal mode 
Transfer in block transfer mode, source side is block area
Full address mode
Bit
DMACRA
Initial value
Read/Write
:
:
:
:










