Renesas M16C/62P Series Hardware Manual page 145

M16C/62P Group (M16C/62P, M16C/62PT)
DMAi Control Register (i=0,1)
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
1. The DMAS bit can be set to "0" by w riting "0" in a program (This bit remains unchanged even if "1" is w ritten).
2. At least one of the DAD and DSD bits must be "0" (address direction fixed).
Figure 14.4 DM0CON and DM1CON Register
Rev.2.41 Jan 10, 2006
REJ09B0185-0241
http://www.xinpian.net
Symbol Address
DM0CON
DM1CON
Bit Symbol Bit Name
Transfer Unit Bit Select Bit
DMBIT
Repeat Transfer Mode Select Bit
DMASL
DMA Request Bit
DMAS
DMA Enable Bit
DMAE
Source Address Direction Select
DSD
(2)
Bit
Destination Address Direction Select
DAD
(2)
Bit
— Nothing is assigned. When w rite, set to "0".
(b7-b6) When read, their contents are "0".
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002Ch
003Ch
0 : 16 bits
1 : 8 bits
0 : Single transfer
1 : Repeat transfer
0 : DMA not requested
1 : DMA requested
0 : Disabled
1 : Enabled
0 : Fixed
1 : Forw ard
0 : Fixed
1 : Forw ard
14. DMAC
After Reset
00000X00b
00000X00b
Function RW
RW
RW
RW
RW
RW
RW
010-62245566 13810019655
(1)
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