Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 202 / 352

System Control
18.2.1.6 ROM_SysCtlDeepSleepClockSet
Sets the clocking of the device while in deep-sleep mode.
Prototype:
void
ROM_SysCtlDeepSleepClockSet(uint32_t ui32Config)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_SYSCTLTABLE
is an array of pointers located at
ROM_APITABLE[13]
.
ROM_SysCtlDeepSleepClockSet
is a function pointer located at
ROM_SYSCTLTABLE[46]
.
Parameters:
ui32Config
is the required configuration of the device clocking while in deep-sleep mode.
Description:
This function configures the clocking of the device while in deep-sleep mode. The oscillator to
be used and the system clock divider are configured with this function.
The ui32Config parameter is the logical OR of the following values:
The system clock divider is chosen with one of the following values: SYSCTL_DSLP_DIV_1 ,
SYSCTL_DSLP_DIV_2 , SYSCTL_DSLP_DIV_3 , ... SYSCTL_DSLP_DIV_64 .
The oscillator source is chosen with one of the following values: SYSCTL_DSLP_OSC_MAIN ,
SYSCTL_DSLP_OSC_INT , SYSCTL_DSLP_OSC_INT30 , or SYSCTL_DSLP_OSC_EXT32 .
SYSCTL_OSC_EXT32 is only available on devices with the hibernate module, and then only
when the hibernate module has been enabled.
The precision internal oscillator can be powered down in deep-sleep mode by specifying
SYSCTL_DSLP_PIOSC_PD . If it is required for operation while in deep-sleep (based on other
configuration settings), it will not be powered down.
Returns:
None.
18.2.1.7 ROM_SysCtlDelay
Provides a small delay.
Prototype:
void
ROM_SysCtlDelay(uint32_t ui32Count)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_SYSCTLTABLE
is an array of pointers located at
ROM_APITABLE[13]
.
ROM_SysCtlDelay
is a function pointer located at
ROM_SYSCTLTABLE[34]
.
Parameters:
ui32Count is the number of delay loop iterations to perform.
202 April 8, 2013