LM3S5956-IQR80-C1 Datasheet, PDF (933/1144 Pages) Texas Instruments – Stellaris® LM3S5956 Microcontroller

NRND: Not recommended for new designs.
Stellaris^® LM3S5956 Microcontroller
OTG A /
Host
OTG B /
Device
Register 332: USB DMA Select (USBDMASEL), offset 0x450
This 32-bit register specifies which endpoints are mapped to the 6 allocated µDMA channels, see
Table 8-1 on page 355 for more information on channel assignments.
USB DMA Select (USBDMASEL)
Base 0x4005.0000
Offset 0x450
Type R/W, reset 0x0033.2211
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
DMACTX
DMACRX
Type RO
RO
RO
RO
RO
RO
RO
RO R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DMABTX
DMABRX
DMAATX
DMAARX
Type R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset 0
0
1
0
0
0
1
0
0
0
0
1
0
0
0
1
Bit/Field
31:24
23:20
Name
reserved
DMACTX
Type
RO
R/W
Reset
0x00
0x3
Description
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.
DMA C TX Select
Specifies the TX mapping of the third USB endpoint on µDMA channel
5 (primary assignment).
Value Description
0x0 reserved
0x1 Endpoint 1 TX
0x2 Endpoint 2 TX
0x3 Endpoint 3 TX
0x4 Endpoint 4 TX
0x5 Endpoint 5 TX
0x6 Endpoint 6 TX
0x7 Endpoint 7 TX
0x8 Endpoint 8 TX
0x9 Endpoint 9 TX
0xA Endpoint 10 TX
0xB Endpoint 11 TX
0xC Endpoint 12 TX
0xD Endpoint 13 TX
0xE Endpoint 14 TX
0xF Endpoint 15 TX
October 06, 2012
933
Texas Instruments-Production Data