BS_DMA controller
RM0082
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Doc ID 018672 Rev 1
Note:
A DMA last burst request can be generated form either a peripheral or the software request
register.
19.7.14 DMACSoftLSReq
register
The DMACSoftLSReq (software last single request) is a RW register which enables DMA
last single requests to be generated by software. The DMACSoftLSReq bit assignments are
given in
Note:
A DMA last single request can be generated form either a peripheral or the software request
register.
19.7.15
DMAC configuration register
The DMACConfiguration is a RW register which allows to configure the operation of the
DMAC. The DMACConfiguration bit assignments are given in
Table 292.
DMACSoftLBReq register bit assignments
Bit
Name
Reset value
Description
[31:16]
Reserved
-
Read: undefined. Write as zero.
[15:00]
SoftLBReq
16’h0000
Software last burst request.
Each bit is associated to one out of 16 peripheral DMA
request lines. Setting a bit, a DMA last burst request for the
corresponding peripheral is generated, and the bit is cleared
when the transaction has completed. Reading this field of
the register indicates the sources that are requesting DMA
last burst transfers.
Table 293.
DMACSoftLSReq register bit assignments
Bit
Name
Reset value
Description
[31:16]
Reserved
-
Read: undefined. Write as zero.
[15:00]
SoftLSReq
16’h0000
Software last single request.
Each bit is associated to one out of 16 peripheral DMA
request lines. Setting a bit, a DMA last single request for
the corresponding peripheral is generated, and the bit is
cleared when the transaction has completed. Reading this
field of the register indicates the sources that are
requesting DMA last single transfers.
Table 294.
DMACConfiguration register bit assignments
Bit
Name
Reset value Description
[31:03]
Reserved
-
Read: undefined. Write as zero.
[02]
M2
1’h0
AHB master 2 endianness configuration.
This bit enables to alter the endianness of the AHB master
interface 2, according to encoding:
1‘b0 = Little-endian mode.
1‘b1 = Big-endian mode.