Mitsubishi Electric M32R Series User Manual page 243

Mitsubishi 32-bit risc single-chip microcomputers
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9
DMA7 Channel Control Register (DM7CNT)
D0
MDSEL7 TREQF7
D
Bit Name
0
MDSEL7
(Selects DMA7 transfer mode)
1
TREQF7
(DMA7 transfer request flag)
2, 3
REQSL7
(Selects cause of DMA7 request)
4
TENL7
(Enables DMA7 transfer)
5
TSZSL7
(Selects DMA7 transfer size)
6
SADSL7
(Selects DMA7 source address direction) 1 : Incremental
7
DADSL7
(Selects DMA7 destination
address direction)
W =
: Only writing a 0 is effective; when you write a 1, the previous value is retained.
1
2
3
REQSL7
Function
0 : Normal mode
1 : Ring buffer mode
0 : Not requested
1 : Requested
00 : Software start
01 : Serial I/O2 (transmit buffer empty)
10 : MJT (TIN2 input signal)
11 : One DMA6 transfer completed
0 : Disables transfer
1 : Enables transfer
0 : 16 bits
1 : 8 bits
0 : Fixed
0 : Fixed
1 : Incremental
9-13
9.2 DMAC Related Registers
<Address: H'0080 0438>
4
5
6
TENL7
TSZSL7
SADSL7
DMAC
D7
DADSL7
<When reset : H'00>
R
W
Ver.0.10

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