CHAPTER 6 DMA FUNCTIONS (DMA CONTROLLER)
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User’s Manual U14359EJ4V0UM
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Bit position
Bit name
Function
Transfer Mode
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
1
TTYP
Transfer Type
Sets the DMA transfer type.
0: 2-cycle transfer
1: Flyby transfer
0
TDIR
Transfer Direction
Sets the transfer direction during transfer between I/O and memory. The setting is valid
during flyby transfer only and ignored during 2-cycle transfer.
0: Memory
→
I/O (read)
1: I/O
→
memory (write)