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Field
Name
R/W
Description
10: Word (32 bits)
11: Reserved
These bits can be written only when EN bit is 0.
In direct mode, when EN bit is 1, MEMSIZECFG bit will be forced
to be of the same value as that of PERSIZECFG bit.
15
PERIOSIZE
R/W
Peripheral increment offset size
0: The offset used to calculate the peripheral address is related
to PERSIZECFG
1: The offset used to calculate the peripheral address is fixed to
4
If PERIM bit is 0, this bit is meaningless, and it can be written only
when EN bit is 0.
If the direct mode is selected or the PBCFG bit is not configured
to 00, and the data stream is enabled, this bit will be forced to low
level by hardware.
17:16
PRILCFG
R/W
Priority Level Configure
00: Low
01: Medium
10: High
11: Very high
These bits can be written only when EN bit is 0.
18
DBM
R/W
Double Buffer Mode
0: Do not switch the buffer when the transmission ends
1: Switch the target memory when DMA transmission ends
This bit can be written only when EN bit is 0.
19
CTARG
R/W
Current Target (only in double buffer mode)
This bit can be set to 1 or 0 by hardware, or be written by
software.
0: The current target memory is Memory 0
1: The current target memory is Memory 1
20
Reserved
22:21
PBCFG
R/W
Peripheral Burst Transfer Configure
00: Single transmission
01: INCR4 (4-tick increment burst transmission)
10: INCR8 (8-tick increment burst transmission)
11: INCR16 (16-tick increment burst transmission)
This bit can be written only when EN bit is 0.
In direct mode, these bits will be forced to 0.
24:23
MBCFG
R/W
Memory Burst Transfer Configure
00: Single transmission
01: INCR4 (4-tick increment burst transmission)
10: INCR8 (8-tick increment burst transmission)
11: INCR16 (16-tick increment burst transmission)
This bit can be written only when EN bit is 0.
In direct mode, these bits will be forced to 0.
27:25
CHSEL
R/W
Channel Selection
000: Select Channel 0