Mitsubishi Electric M32R Series User Manual page 239

Mitsubishi 32-bit risc single-chip microcomputers
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9
DMA3 Channel Control Register (DM3CNT)
D0
MDSEL3 TREQF3
D
Bit Name
0
MDSEL3
(Selects DMA3 transfer mode)
1
TREQF3
(DMA3 transfer request flag)
2, 3
REQSL3
(Selects cause of DMA3 request)
4
TENL3
(Enables DMA3 transfer)
5
TSZSL3
(Selects DMA3 transfer size)
6
SADSL3
(Selects DMA3 source address direction) 1 : Incremental
7
DADSL3
(Selects DMA3 destination
address direction)
W =
: Only writing a 0 is effective; when you write a 1, the previous value is retained.
1
2
3
REQSL3
Function
0 : Normal mode
1 : Ring buffer mode
0 : Not requested
1 : Requested
00 : Software start
01 : Serial I/O0 (transmit buffer empty)
10 : Serial I/O1 (reception completed)
11 : MJT (TIN0 input signal)
0 : Disables transfer
1 : Enables transfer
0 : 16 bits
1 : 8 bits
0 : Fixed
0 : Fixed
1 : Incremental
9-9
9.2 DMAC Related Registers
<Address: H'0080 0440>
4
5
6
TENL3
TSZSL3
SADSL3
DMAC
D7
DADSL3
<When reset : H'00>
R
W
Ver.0.10

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