Texas Instruments TM4C1294NCPDT User Manual

Register 11: Run and Sleep Mode Configuration Register (RSCLKCFG), offset
0x0B0
Important: When transitioning the system clock configuration to use the MOSC as the fundamental
clock source, the PWRDN bit must be set in the MOSCCTL register prior to reselecting
the MOSC for proper operation.
Run and Sleep Mode Configuration Register (RSCLKCFG)
Base 0x400F.E000
Offset 0x0B0
Type RW, reset 0x0000.0000
16171819202122232425262728293031
OSYSDIVOSCSRCPLLSRCUSEPLLACGNEWFREQMEMTIMU
RWRWRWRWRWRWRWRWRWRWRWRWRWRWR0/WR0/WType
0000000000000000Reset
0123456789101112131415
PSYSDIVOSYSDIV
RWRWRWRWRWRWRWRWRWRWRWRWRWRWRWRWType
0000000000000000Reset
DescriptionResetTypeNameBit/Field
Memory Timing Register Update
Setting this bit causes the MEMTIM0 register value to be applied, and
the memory timing to be updated. Execution and access is suspended
during the change.
This bit is automatically cleared by hardware.
0R0/WMEMTIMU31
New PLLFREQ Accept
This bit controls the activation of the values in the PLLFREQ0 and
PLLFREQ1 registers as applied to the PLL. Until NEWFREQ is written to
a 1, writes to the PLLFREQ0 and PLLFREQ1 are deferred. When written
with a 1, the values stored in PLLFREQ0 and PLLFREQ1 are applied
to the PLL.
This bit is automatically cleared by hardware. Software will not check
the value after being set.
0R0/WNEWFREQ30
Auto Clock Gating
This bit specifies whether the system uses the Sleep-Mode Clock
Gating Control (SCGCn) registers and Deep-Sleep-Mode Clock
Gating Control (DCGCn) registers if the microcontroller enters a Sleep
or Deep-Sleep mode (respectively).
DescriptionValue
The Run-Mode Clock Gating Control (RCGCn) registers are
used when the microcontroller enters a sleep mode.
0
If the microcontroller is in sleep mode, the SCGCn registers are
used to control the clocks distributed to the peripherals. If the
microcontroller is in deep-sleep mode, the DCGCn registers
are used to control the clocks distributed to the peripherals. The
SCGCn and DCGCn registers allow unused peripherals to
consume less power when the microcontroller is in a sleep
mode.
1
The RCGCn registers are always used to control the clocks in Run
mode.
0x0RWACG29
275June 18, 2014
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TM4C1294NCPDT Microcontroller

Texas Instruments TM4C1294NCPDT Specifications

General

Brand	Texas Instruments
Model	TM4C1294NCPDT
Category	Microcontrollers
Language	English