RM0082
BS_DMA controller
Doc ID 018672 Rev 1
343/844
19.7.11 DMACSoftBReq
register
The DMACSoftBReq (software burst request) is a RW register which enables DMA burst
requests to be generated by software. The DMACSoftBReq bit assignments are given in
Note:
A DMA burst request can be generated form either a peripheral or the software request
register. However, it is recommended not to use software and hardware peripheral requests
at the same time.
19.7.12 DMACSoftSReq
register
The DMACSoftSReq (software single request) is a RW register which enables DMA single
requests to be generated by software. The DMACSoftSReq bit assignments are given in
Note:
A DMA single request can be generated form either a peripheral or the software request
register. However, it is recommended not to use software and hardware peripheral requests
at the same time.
19.7.13 DMACSoftLBReq
register
The DMACSoftLBReq (software last burst request) is a RW register which enables DMA last
burst requests to be generated by software. The DMACSoftLBReq bit assignments are
given in
Table 290.
DMACSoftBReq register bit assignments
Bit
Name
Reset value
Description
[31:16]
Reserved
-
Read: undefined. Write as zero.
[15:00]
SoftBReq
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 291.
DMACSoftSReq register bit assignments
Bit
Name
Reset value Description
[31:16]
Reserved
-
Read: undefined. Write as zero.
[15:00]
SoftSReq
16’h0000
Software single request.
Each bit is associated to one out of 16 peripheral DMA
request lines. Setting a bit, a DMA 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 single
transfers.