TM4C129XNCZAD Datasheet, PDF (411/2191 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129XNCZAD Microcontroller
Register 100: Universal Serial Bus Run Mode Clock Gating Control
(RCGCUSB), offset 0x628
The RCGCUSB register provides software the capability to enable and disable the USB module in
Run mode. When enabled, the module is provided a clock and accesses to module registers are
allowed. When disabled, the clock is disabled to save power and accesses to module registers
generate a bus fault.
Important: This register should be used to control the clocking for the USB module.
Universal Serial Bus Run Mode Clock Gating Control (RCGCUSB)
Base 0x400F.E000
Offset 0x628
Type RW, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
R0
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:1
0
Name
reserved
R0
Type
RO
RW
Reset
0
0
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.
USB Module Run Mode Clock Gating Control
Value Description
0 USB module is disabled.
1 Enable and provide a clock to the USB module in Run mode.
June 18, 2014
411
Texas Instruments-Production Data