HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 270

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 7 DMA Controller (Not Supported in the H8S/2321)
7.3.4
DMACR is a 16-bit readable/writable register that controls the operation of each DMAC channel.
In full address mode, DMACRA and DMACRB have different functions.
DMACR is initialized to H'0000 by a reset, and in hardware standby mode.
DMACRA
DMACRB
Bit 15—Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time.
Bit 15
DTSZ
0
1
Rev.6.00 Sep. 27, 2007 Page 240 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
Bit
Initial value :
R/W
DMA Control Register (DMACR)
Description
Byte-size transfer
Word-size transfer
:
:
:
:
DTSZ
R/W
R/W
15
—
0
7
0
SAID
DAID
R/W
R/W
14
0
6
0
SAIDE
DAIDE
R/W
R/W
13
0
5
0
BLKDIR
R/W
R/W
12
—
0
4
0
BLKE
DTF3
R/W
R/W
11
0
3
0
DTF2
R/W
R/W
10
—
0
2
0
DTF1
R/W
R/W
—
9
0
1
0
(Initial value)
DTF0
R/W
R/W
—
8
0
0
0