HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 241
HD6412332
Manufacturer Part Number
HD6412332
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412332.pdf
(1244 pages)
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7.2.4
DMACR is an 8-bit readable/writable register that controls the operation of each DMAC channel.
DMACR is initialized to H'00 by a reset, and in standby mode.
Bit 7—Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time.
Bit 7
DTSZ
0
1
Bit 6—Data Transfer Increment/Decrement (DTID): Selects incrementing or decrementing of
MAR after every data transfer in sequential mode or repeat mode.
In idle mode, MAR is neither incremented nor decremented.
Bit 6
DTID
0
1
Bit
Initial value :
R/W
DMA Control Register (DMACR)
Description
Description
•
•
•
•
Byte-size transfer
Word-size transfer
MAR is incremented after a data transfer
MAR is decremented after a data transfer
:
:
When DTSZ = 0, MAR is incremented by 1 after a transfer
When DTSZ = 1, MAR is incremented by 2 after a transfer
When DTSZ = 0, MAR is decremented by 1 after a transfer
When DTSZ = 1, MAR is decremented by 2 after a transfer
DTSZ
R/W
7
0
DTID5
R/W
6
0
RPE
R/W
5
0
DTDIR
R/W
0
4
Rev.4.00 Sep. 07, 2007 Page 211 of 1210
DTF3
R/W
3
0
DTF2
R/W
2
0
REJ09B0245-0400
DTF1
R/W
1
0
(Initial value)
(Initial value)
DTF0
R/W
0
0
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