LM3S1H11 Datasheet, PDF (245/956 Pages) Texas Instruments – Stellaris® LM3S1H11 Microcontroller

Stellaris^® LM3S1H11 Microcontroller
Register 30: Run Mode Clock Gating Control Register 1 (RCGC1), offset 0x104
This register controls the clock gating logic in normal Run mode. Each bit controls a clock enable
for a given interface, function, or module. If set, the module receives a clock and functions. Otherwise,
the module is unclocked and disabled (saving power). If the module is unclocked, reads or writes
to the module generate a bus fault. The reset state of these bits is 0 (unclocked) unless otherwise
noted, so that all functional modules are disabled. It is the responsibility of software to enable the
ports necessary for the application. Note that these registers may contain more bits than there are
interfaces, functions, or modules to control. This configuration is implemented to assure reasonable
code compatibility with other family and future parts. RCGC1 is the clock configuration register for
running operation, SCGC1 for Sleep operation, and DCGC1 for Deep-Sleep operation. Setting the
ACG bit in the Run-Mode Clock Configuration (RCC) register specifies that the system uses sleep
modes.
Run Mode Clock Gating Control Register 1 (RCGC1)
Base 0x400F.E000
Offset 0x104
Type R/W, reset 0x00000000
31
30
29
28
27
26
25
24
23
reserved EPI0
reserved
COMP1 COMP0
Type RO
R/W
RO
RO
RO
RO
R/W
R/W
RO
Reset
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
reserved
I2C1
reserved
I2C0
reserved
Type RO
R/W
RO
R/W
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
22
21
reserved
RO
RO
0
0
6
5
SSI1
RO
R/W
0
0
20
19
18
17
16
TIMER3 TIMER2 TIMER1 TIMER0
RO
R/W
R/W
R/W
R/W
0
0
0
0
0
4
SSI0
R/W
0
3
2
1
0
reserved UART2 UART1 UART0
RO
R/W
R/W
R/W
0
0
0
0
Bit/Field
31
30
29:26
25
24
Name
reserved
EPI0
reserved
COMP1
COMP0
Type
RO
R/W
RO
R/W
R/W
Reset
0
0
0
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.
EPI0 Clock Gating
This bit controls the clock gating for EPI module 0. If set, the module
receives a clock and functions. Otherwise, the module is unclocked and
disabled. If the module is unclocked, a read or write to the module
generates a bus fault.
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 1 Clock Gating
This bit controls the clock gating for analog comparator 1. If set, the
module receives a clock and functions. Otherwise, the module is
unclocked and disabled. If the module is unclocked, a read or write to
the module generates a bus fault.
Analog Comparator 0 Clock Gating
This bit controls the clock gating for analog comparator 0. If set, the
module receives a clock and functions. Otherwise, the module is
unclocked and disabled. If the module is unclocked, a read or write to
the module generates a bus fault.
January 23, 2012
245
Texas Instruments-Production Data