TM4C1233H6PZ Datasheet, PDF (343/1243 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C1233H6PZ Microcontroller
Register 67: Analog Comparator Run Mode Clock Gating Control
(RCGCACMP), offset 0x63C
The RCGCACMP register provides software the capability to enable and disable the analog
comparator 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. This register provides the same capability as the legacy Run
Mode Clock Gating Control Register n RCGCn registers specifically for the watchdog modules
and has the same bit polarity as the corresponding RCGCn bits.
Important: This register should be used to control the clocking for the analog comparator module.
To support legacy software, the RCGC1 register is available. Setting any of the COMPn
bits in the RCGC1 register also sets the R0 bit in this register. If any of the COMPn bits
are set by writing to the RCGC1 register, it can be read back correctly when reading
the RCGC1 register. If software uses this register to change the clocking for the analog
comparator module, the write causes proper operation, but the value R0 is not reflected
by the COMPn bits in the RCGC1 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 Run Mode Clock Gating Control (RCGCACMP)
Base 0x400F.E000
Offset 0x63C
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 Run Mode Clock Gating Control
Value Description
0 Analog comparator module is disabled.
1 Enable and provide a clock to the analog comparator module
in Run mode.
June 12, 2014
343
Texas Instruments-Production Data