R01UH0823EJ0100 Rev.1.00
Page 344 of 1823
Jul 31, 2019
RX23W Group
18. DMA Controller (DMACA)
18.2.5
DMA Transfer Mode Register (DMTMD)
Note 1. DMAC activation source is selected using the DMRSRm registers of the ICU. For details on DMAC activation sources, see
Table 15.3, Interrupt Vector Table in section 15, Interrupt Controller (ICUb).
DTS[1:0] Bits (Repeat Area Select)
DTS[1:0] select either the source or destination as the repeat area in repeat or block transfer mode. In normal transfer
mode, setting these bits is invalid.
Address(es): DMAC0.DMTMD 0008 2010h, DMAC1.DMTMD 0008 2050h, DMAC2.DMTMD 0008 2090h, DMAC3.DMTMD 0008 20D0h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
MD[1:0]
DTS[1:0]
—
—
SZ[1:0]
—
—
—
—
—
—
DCTG[1:0]
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b1, b0
DCTG[1:0] DMA Request Source
Select
b1 b0
0 0: Software
0 1: Interrupts*
from peripheral modules or external interrupt input pins
1 0: Setting prohibited
1 1: Setting prohibited
R/W
b7 to b2
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b9, b8
Transfer Data Size
Select
b9 b8
0 0: 8 bits
0 1: 16 bits
1 0: 32 bits
1 1: Setting prohibited
R/W
b11, b10
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b13, b12
Repeat Area Select
b13 b12
0 0: The destination is specified as the repeat area or block area.
0 1: The source is specified as the repeat area or block area.
1 0: The repeat area or block area is not specified.
1 1: Setting prohibited
R/W
b15, b14
Transfer Mode Select
b15 b14
0 0: Normal transfer
0 1: Repeat transfer
1 0: Block transfer
1 1: Setting prohibited
R/W