AN666 Ver la hoja de datos (PDF) - Silicon Laboratories
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AN666 Datasheet PDF : 34 Pages
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AN666
Table 3. DMA0_CHx_CONFIG: Channel Configuration
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Name
Reserved
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Name
NCOUNT
TMD
Address in Channel Transfer Descriptor: 0x0008
Bit
31:30
29:28
27:26
25:24
23:18
Name
DSTAIMD
DSTSIZE
SRCAIMD
SRCSIZE
Reserved
Function
Destination Address Increment Mode.
This field must be set to a value that's equal to or greater than the DSTSIZE setting.
00: The destination address increments by one byte after each data transfer.
01: The destination address increments by one half-word after each data transfer.
10: The destination address increments by one word after each data transfer.
11: The destination address does not increment.
Destination Data Size Select.
The destination size (DSTSIZE) must equal the source size (SRCSIZE).
00: Each DMA destination data transfer writes a byte.
01: Each DMA destination data transfer writes a half-word.
10: Each DMA destination data transfer writes a word.
11: Reserved.
Source Address Increment Mode.
This field must be set to a value that's equal to or greater than the SRCSIZE setting.
00: The source address increments by one byte after each data transfer.
01: The source address increments by one half-word after each data transfer.
10: The source address increments by one word after each data transfer.
11: The source address does not increment.
Source Data Size Select.
The destination size (DSTSIZE) must equal the source size (SRCSIZE).
00: Each DMA source data transfer reads a byte.
01: Each DMA source data transfer reads a half-word.
10: Each DMA source data transfer reads a word.
11: Reserved.
Must write 0 to this field.
6
Rev. 0.1
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