LM3S5737 Datasheet, PDF (316/833 Pages) Texas Instruments – Stellaris® LM3S5737 Microcontroller

Micro Direct Memory Access (μDMA)
Bit/Field
7:4
3:1
0
Name
STATE
reserved
MASTEN
Type
RO
RO
RO
Reset
0x00
Description
Control State Machine State
Current state of the control state machine. State can be one of the
following.
Value Description
0x0
Idle
0x1
Read Chan Control Data
Reading channel controller data.
0x2
Read Source End Ptr
Reading source end pointer.
0x3
Read Dest End Ptr
Reading destination end pointer.
0x4
Read Source Data
Reading source data.
0x5
Write Dest Data
Writing destination data.
0x6
Wait for Req Clear
Waiting for DMA request to clear.
0x7
Write Chan Control Data
Writing channel controller data.
0x8
Stalled
0x9
Done
0xA-0xF Undefined
0x00
0x00
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.
Master Enable
Returns status of the controller.
Value Description
0 Disabled
1 Enabled
316
November 17, 2011
Texas Instruments-Production Data