TM4C129DNCZAD Datasheet, PDF (592/1967 Pages) Texas Instruments – Tiva Microcontroller

Hibernation Module
Register 22: HIB Tamper Status (HIBTPSTAT), offset 0x404
The HIB Tamper Status (HIBTPCTL) register provides status of the module.
Note:
Except for the HIBIO and a portion of the HIBIC register, all other Hibernation module
registers are on the Hibernation module clock domain and have special timing requirements.
Software should make use of the WRC bit in the HIBCTL register to ensure that the required
timing gap has elapsed. If the WRC bit is clear, any attempted write access is ignored. See
“Register Access Timing” on page 538. The HIBIO register and bits RSTWK, PADIOWK and
WC of the HIBIC register do not require waiting for write to complete. Because these registers
are clocked by the system clock, writes to these registers/bits are immediate.
Writing to registers other than the HIBCTL and HIBIM before the CLK32EN bit in the HIBCTL
register has been set may produce unexpected results.
Note: Errant writes to the Tamper registers are protected by the Hibernate HIBLOCK register.
HIB Tamper Status (HIBTPSTAT)
Base 0x400F.C000
Offset 0x404
Type RW1C, 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
STATE
XOSCST XOSCFAIL
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW1C
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:4
3:2
Name
reserved
STATE
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.
Tamper Module Status
Tamper is defined as being configured when the tamper I/Os have been
enabled (setting the ENx bits in the HIBTPIO register).
Value Description
0x0 Tamper disabled.
0x1 Tamper configured.
0x2 Tamper pin event occurred.
1
XOSCST
RO
0
External Oscillator Status
Value Description
0 Active
1 Stopped
592
June 18, 2014
Texas Instruments-Production Data