EFM32WG Datasheet, PDF (65/834 Pages) List of Unclassifed Manufacturers – The EFM32WG Wonder Gecko is the ideal choice for demanding 8-, 16-, and 32-bit energy sensitive applications.

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Table 8.8. dst_data_end_ptr bit assignments
Bit
[31:0]
Name
Description
dst_data_end_ptr Pointer to the end address of the destination data
Before the controller can perform a DMA transfer, you must program this memory location with the end
address of the destination data. The controller reads this memory location when it starts a 2^R DMA
transfer.
Note
The controller does not write to this memory location.
8.4.3.3 Control data configuration
For each DMA transfer, the channel_cfg memory location provides the control information for the
controller. Figure 8.8 (p. 65) shows the bit assignments for this memory location.
Figure 8.8. channel_cfg bit assignments
31 30 29 28 27 26 25 24 23 21 20 18 17
14 13
432 0
R_p o w e r
n_m inus_1
dst _inc src_inc
dst _size src_size
src_prot _ct rl
dst _prot _ct rl
cycle_ct rl
next _useburst
Table 8.9 (p. 65) lists the bit assignments for this memory location.
Table 8.9. channel_cfg bit assignments
Bit
[31:30]
Name
dst_inc
Description
Destination address increment.
The address increment depends on the source data width as follows:
Source data width = byte
b00 = byte.
b01 = halfword.
b10 = word.
b11 = no increment. Address remains set to the value that
the dst_data_end_ptr memory location contains.
Source data width = halfword
b00 = reserved.
b01 = halfword.
b10 = word.
b11 = no increment. Address remains set to the value that
the dst_data_end_ptr memory location contains.
[29:28] dst_size
[27:26] src_inc
Source data width = word
b00 = reserved.
b01 = reserved.
b10 = word.
b11 = no increment. Address remains set to the value that
the dst_data_end_ptr memory location contains.
Destination data size.
Note
You must set dst_size to contain the same value that src_size contains.
Set the bits to control the source address increment. The address increment depends on the
source data width as follows:
2013-05-08 - Wonder Gecko Family - d0233_Rev0.50
65
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