CHAPTER 6 DMA FUNCTIONS (DMA CONTROLLER)
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User’s Manual U15195EJ5V0UD
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Bit position
Bit name
Function
Sets the count direction of the source address for DMA channel n (n = 0 to 3).
SAD1 SAD0
Count
direction
0 0
Increment
0 1
Decrement
1 0
Fixed
1 1
Setting
prohibited
7, 6
SAD1,
SAD0
Sets the count direction of the destination address for DMA channel n (n = 0 to 3).
DAD1 DAD0
Count
direction
0 0
Increment
0 1
Decrement
1 0
Fixed
1 1
Setting
prohibited
5, 4
DAD1,
DAD0
Sets the transfer mode during DMA transfer.
TM1 TM0
Transfer
mode
0
0
Single transfer mode
0
1
Single-step transfer mode
1 0
Setting
prohibited
1
1
Block transfer mode
3, 2
TM1, TM0
Содержание PD703114
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