Texas Instruments TM4C1294NCPDT - Page 707

DescriptionResetTypeNameBit/Field
Destination Privilege Access
This bit controls the privilege access protection for destination data
writes.
DescriptionValue
The access is non-privileged.0
The access is privileged.1
0RWDSTPROT021
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
-ROreserved20:19
Source Privilege Access
This bit controls the privilege access protection for source data reads.
DescriptionValue
The access is non-privileged.0
The access is privileged.1
0RWSRCPROT018
Arbitration Size
This field configures the number of transfers that can occur before the
μDMA controller re-arbitrates. The possible arbitration rate configurations
represent powers of 2 and are shown below.
DescriptionValue
1 Transfer
Arbitrates after each μDMA transfer
0x0
2 Transfers0x1
4 Transfers0x2
8 Transfers0x3
16 Transfers0x4
32 Transfers0x5
64 Transfers0x6
128 Transfers0x7
256 Transfers0x8
512 Transfers0x9
1024 Transfers
In this configuration, no arbitration occurs during the μDMA
transfer because the maximum transfer size is 1024.
0xA-0xF
-RWARBSIZE17:14
707June 18, 2014
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TM4C1294NCPDT Microcontroller