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9
DMA4 Channel Control Register (DM4CNT)
D0
MDSEL4 TREQF4
D
Bit Name
0
MDSEL4
(Selects DMA4 transfer mode)
1
TREQF4
(DMA4 transfer request flag)
2, 3
REQSL4
(Selects cause of DMA4 request)
4
TENL4
(Enables DMA4 transfer)
5
TSZSL4
(Selects DMA4 transfer size)
6
SADSL4
(Selects DMA4 source address direction) 1 : Incremental
7
DADSL4
(Selects DMA4 destination
address direction)
W =
: Only writing a 0 is effective; when you write a 1, the previous value is retained.
1
2
3
REQSL4
Function
0 : Normal mode
1 : Ring buffer mode
0 : Not requested
1 : Requested
00 : Software start
01 : One DMA3 transfer completed
10 : Serial I/O0 (reception completed)
11 : MJT (TIN19 input signal)
0 : Disables transfer
1 : Enables transfer
0 : 16 bits
1 : 8 bits
0 : Fixed
0 : Fixed
1 : Incremental
9-10
9.2 DMAC Related Registers
4
5
6
TENL4
TSZSL4
SADSL4 DADSL4
DMAC
<Address: H'0080 0450>
D7
<When reset : H'00>
R
W
Ver.0.10
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