Texas Instruments Development Kit for TM4C129x,Tiva™ ARM® Cortex™ -M4 Microcontroller DK-TM4C129X DK-TM4C129X Datenbogen

System Configuration of DES module

After one operation has completed, the DES_SYSCONFIG register must be cleared and
re-configured for the next operation to ensure proper DMA and data operation functionality.

DES System Configuration (DES_SYSCONFIG)

Base 0x4403.8000
Offset 0x034
Type RW, reset 0x0000.0001

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

reserved

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

RO

Type

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Reset

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

reserved

SOFTRESET

SIDLE

reserved

DMA_REQ_DA

T

A_IN_EN

DMA_REQ_DA

T

A_OUT_EN

DMA_REQ_CONTEXT_IN_EN

reserved

RO

RW

RW

RW

RO

RW

RW

RW

RO

RO

RO

RO

RO

RO

RO

RO

Type

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Reset

Description

Reset

Type

Name

Bit/Field

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.

0

RO

reserved

31:8

DMA Request Context In Enable

Description

Value

DMA disabled

0

DMA enabled

1

0

RW

DMA_REQ_CONTEXT_

IN_EN

7

DMA Request Data Out Enable

Description

Value

DMA disabled

0

DMA enabled

1

0

RW

DMA_REQ_DATA_

OUT_EN

6

DMA Request Data In Enable

Description

Value

DMA disabled

0

DMA enabled

1

0

RW

DMA_REQ_DATA_IN_EN

5