R01UH0823EJ0100 Rev.1.00
Page 350 of 1823
Jul 31, 2019
RX23W Group
18. DMA Controller (DMACA)
18.2.8
DMA Offset Register (DMOFR)
Write to this register while the DMAC operation is stopped or DMA transfer is disabled (not during data transfer).
Setting bits 31 to 25 is invalid; a value of bit 24 is extended to bits 31 to 25. Reading DMOFR returns the extended value.
Address(es): DMAC0.DMOFR 0008 2018h
b31
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Description
Setting Range
R/W
b31 to b0
Specifies the offset when offset addition is selected
as the address update mode for transfer source or
destination.
0000 0000h to 00FF FFFFh (0 bytes to (16 M – 1) bytes)
FF00 0000h to FFFF FFFFh (–16 Mbytes to –1 byte)
R/W