Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 225 / 352

System Exception Module
19.2.1.3 ROM_SysExcIntEnable
Enables individual system exception interrupt sources.
Prototype:
void
ROM_SysExcIntEnable(uint32_t ui32IntFlags)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_SYSEXCTABLE
is an array of pointers located at
ROM_APITABLE[30]
.
ROM_SysExcIntEnable
is a function pointer located at
ROM_SYSEXCTABLE[3]
.
Parameters:
ui32IntFlags
is the bit mask of the interrupt sources to be enabled.
Description:
This function enables the indicated system exception interrupt sources. Only the sources that
are enabled can be reflected to the processor interrupt; disabled sources have no effect on the
processor.
The ui32IntFlags parameter is the logical OR of any of the following:
SYSEXCP_INT_FP_IXC - Floating-point inexact exception interrupt
SYSEXCP_INT_FP_OFC - Floating-point overflow exception interrupt
SYSEXCP_INT_FP_UFC - Floating-point underflow exception interrupt
SYSEXCP_INT_FP_IOC - Floating-point invalid operation interrupt
SYSEXCP_INT_FP_DZC - Floating-point divide by zero exception interrupt
SYSEXCP_INT_FP_IDC
- Floating-point input denormal exception interrupt
Returns:
None.
19.2.1.4 ROM_SysExcIntStatus
Gets the current system exception interrupt status.
Prototype:
uint32_t
ROM_SysExcIntStatus(bool bMasked)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_SYSEXCTABLE
is an array of pointers located at
ROM_APITABLE[30]
.
ROM_SysExcIntStatus
is a function pointer located at
ROM_SYSEXCTABLE[0]
.
Parameters:
bMasked is false if the raw interrupt status is required and true if the masked interrupt status
is required.
Description:
This function returns the system exception interrupt status. Either the raw interrupt status or
the status of interrupts that are allowed to reflect to the processor can be returned.
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