M32C8A Datasheet, PDF (144/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
13. DMAC
DMA Mode Register 1⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
DMD1
Address
(CPU internal register)
After Reset
00h
Bit Symbol
Bit Name
Function
RW
MD20
b1 b0
0 0: DMA disabled
RW
Channel 2
0 1: Single transfer
transfer mode select bits
1 0: Do not set to this value
MD21
1 1: Repeat transfer
RW
BW2
Channel 2
transfer unit select bit
0: 8 bits
1: 16 bits
RW
RW2
Channel 2
transfer direction select bit
0: Fixed address to incremented address
1: Incremented address to fixed address
RW
MD30
b5 b4
0 0: DMA disabled
RW
Channel 3
0 1: Single transfer
transfer mode select bits
1 0: Do not set to this value
MD31
1 1: Repeat transfer
RW
BW3
Channel 3
transfer unit select bit
0: 8 bits
1: 16 bits
RW
RW3
Channel 3
transfer direction select bit
0: Fixed address to incremented address
1: Incremented address to fixed address
RW
NOTE:
1. Use the LDC instruction to set the DMD1 register.
Figure 13.6 DMD1 Register
Rev.1.00 Jul 15, 2007 Page 127 of 352
REJ09B0385-0100