TM4C129DNCPDT Datasheet, PDF (519/1946 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129DNCPDT Microcontroller
Register 174: CRC and Cryptographic Modules Peripheral Ready (PRCCM),
offset 0xA74
The PRCCM register indicates whether the CRC and Cryptographic Modules( AES, DES, and
SHA/MD5) 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 PCCCM bit is changed from 0
to 1. A Run mode clocking change is initiated if the corresponding RCGCCCM bit is changed. A
reset change is initiated if the corresponding SRCCM bit is changed from 0 to 1.
The PRCCM bit is cleared on any of the above events and is not set again until the modules are
completely powered, enabled, and internally reset.
CRC and Cryptographic Modules Peripheral Ready (PRCCM)
Base 0x400F.E000
Offset 0xA74
Type RO, 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
RO
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
RO
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.
CRC and Cryptographic Modules Peripheral Ready
Value Description
0 The CRC, AES, DES, and SHA/MD modules are not ready for
access. They are unclocked, unpowered, or in the process of
completing a reset sequence.
1 The CRC, AES, DES, and SHA/MD modules are ready for
access.
June 18, 2014
519
Texas Instruments-Production Data