TM4C123BH6PM Datasheet, PDF (321/1277 Pages) Texas Instruments – Tiva TM4C123BH6PM Microcontroller

Tiva^™ TM4C123BH6PM Microcontroller
Register 52: Analog Comparator Software Reset (SRACMP), offset 0x53C
The SRACMP register provides software the capability to reset the available analog comparator
module. This register provides the same capability as the legacy Software Reset Control n SRCRn
registers specifically for the analog comparator module and has the same bit polarity as the
corresponding SRCRn bits.
A block is reset by software using a simple two-step process:
1. Software sets a bit (or bits) in the SRACMP register. While the SRACMP bit is 1, the module
is held in reset.
2. Software completes the reset process by clearing the SRACMP bit.
There may be latency from the clearing of the SRACMP bit to when the module is ready for use.
Software can check the corresponding PRACMP bit to be sure.
Important: This register should be used to reset the analog comparator module. To support legacy
software, the SRCR1 register is available. Setting any of the COMPn bits in the SRCR0
register also resets the analog comparator module. If any of the COMPn bits are set by
writing to the SRCR1 register, it can be read back correctly when reading the SRCR0
register. If software uses this register to reset the analog comparator module, the write
causes proper operation, but the value of R0 is not reflected by the COMPn bits in the
SRCR1 register. If software uses both legacy and peripheral-specific register accesses,
the peripheral-specific registers must be accessed by read-modify-write operations that
affect only peripherals that are not present in the legacy registers. In this manner, both
the peripheral-specific and legacy registers have coherent information.
Analog Comparator Software Reset (SRACMP)
Base 0x400F.E000
Offset 0x53C
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.
Analog Comparator Module 0 Software Reset
Value Description
0 Analog comparator module is not reset.
1 Analog comparator module is reset.
June 12, 2014
321
Texas Instruments-Production Data