Texas Instruments Development Kit for TM4C129x,Tiva™ ARM® Cortex™ -M4 Microcontroller DK-TM4C129X DK-TM4C129X 데이터 시트
제품 코드
DK-TM4C129X
Register 181: Universal Asynchronous Receiver/Transmitter Peripheral Ready
(PRUART), offset 0xA18
(PRUART), offset 0xA18
The PRUART register indicates whether the UART modules are ready to be accessed by software
following a change in status of power, Run mode clocking, or reset. A power change is initiated if
the corresponding PCUART bit is changed from 0 to 1. A Run mode clocking change is initiated if
the corresponding RCGCUART bit is changed. A reset change is initiated if the corresponding
SRUART bit is changed from 0 to 1.
following a change in status of power, Run mode clocking, or reset. A power change is initiated if
the corresponding PCUART bit is changed from 0 to 1. A Run mode clocking change is initiated if
the corresponding RCGCUART bit is changed. A reset change is initiated if the corresponding
SRUART bit is changed from 0 to 1.
The PRUART bit is cleared on any of the above events and is not set again until the module is
completely powered, enabled, and internally reset.
completely powered, enabled, and internally reset.
Universal Asynchronous Receiver/Transmitter Peripheral Ready (PRUART)
Base 0x400F.E000
Offset 0xA18
Type RO, reset 0x0000.0000
Offset 0xA18
Type RO, reset 0x0000.0000
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
R0
R1
R2
R3
R4
R5
R6
R7
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
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.
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0
RO
reserved
31:8
UART Module 7 Peripheral Ready
Description
Value
UART module 7 is not ready for access. It is unclocked,
unpowered, or in the process of completing a reset sequence.
unpowered, or in the process of completing a reset sequence.
0
UART module 7 is ready for access.
1
0
RO
R7
7
UART Module 6 Peripheral Ready
Description
Value
UART module 6 is not ready for access. It is unclocked,
unpowered, or in the process of completing a reset sequence.
unpowered, or in the process of completing a reset sequence.
0
UART module 6 is ready for access.
1
0
RO
R6
6
UART Module 5 Peripheral Ready
Description
Value
UART module 5 is not ready for access. It is unclocked,
unpowered, or in the process of completing a reset sequence.
unpowered, or in the process of completing a reset sequence.
0
UART module 5 is ready for access.
1
0
RO
R5
5
533
December 13, 2013
Texas Instruments-Advance Information
Tiva
™
TM4C129XNCZAD Microcontroller