Module cc2650::cpu_dwt

Cortex-M's Data watchpoint and Trace (DWT)

Modules

comp0	Comparator 0 This register is used to write the reference value for comparator 0.
comp1	Comparator 1 This register is used to write the reference value for comparator 1.
comp2	Comparator 2 This register is used to write the reference value for comparator 2.
comp3	Comparator 3 This register is used to write the reference value for comparator 3.
cpicnt	CPI Count This register is used to count the total number of instruction cycles beyond the first cycle.
ctrl	Control Use the DWT Control Register to enable the DWT unit.
cyccnt	Current PC Sampler Cycle Count This register is used to count the number of core cycles. This counter can measure elapsed execution time. This is a free-running counter (this counter will not advance in power modes where free-running clock to CPU stops). The counter has three functions: 1: When CTRL.PCSAMPLEENA = 1, the PC is sampled and emitted when the selected tapped bit changes value (0 to 1 or 1 to 0) and any post-scalar value counts to 0. 2: When CTRL.CYCEVTENA = 1 , (and CTRL.PCSAMPLEENA = 0), an event is emitted when the selected tapped bit changes value (0 to 1 or 1 to 0) and any post-scalar value counts to 0. 3: Applications and debuggers can use the counter to measure elapsed execution time. By subtracting a start and an end time, an application can measure time between in-core clocks (other than when Halted in debug). This is valid to 2^32 core clock cycles (for example, almost 89.5 seconds at 48MHz).
exccnt	Exception Overhead Count This register is used to count the total cycles spent in interrupt processing.
foldcnt	Fold Count This register is used to count the total number of folded instructions. The counter increments on each instruction which takes 0 cycles.
function0	Function 0 Use the DWT Function Registers 0 to control the operation of the comparator 0. This comparator can: 1. Match against either the PC or the data address. This is controlled by CYCMATCH. This function is only available for comparator 0 (COMP0). 2. Emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
function1	Function 1 Use the DWT Function Registers 1 to control the operation of the comparator 1. This comparator can: 1. Perform data value comparisons if associated address comparators have performed an address match. This function is only available for comparator 1 (COMP1). 2. Emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
function2	Function 2 Use the DWT Function Registers 2 to control the operation of the comparator 2. This comparator can emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
function3	Function 3 Use the DWT Function Registers 3 to control the operation of the comparator 3. This comparator can emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
lsucnt	LSU Count This register is used to count the total number of cycles during which the processor is processing an LSU operation beyond the first cycle.
mask0	Mask 0 Use the DWT Mask Registers 0 to apply a mask to data addresses when matching against COMP0.
mask1	Mask 1 Use the DWT Mask Registers 1 to apply a mask to data addresses when matching against COMP1.
mask2	Mask 2 Use the DWT Mask Registers 2 to apply a mask to data addresses when matching against COMP2.
mask3	Mask 3 Use the DWT Mask Registers 3 to apply a mask to data addresses when matching against COMP3.
pcsr	Program Counter Sample This register is used to enable coarse-grained software profiling using a debug agent, without changing the currently executing code. If the core is not in debug state, the value returned is the instruction address of a recently executed instruction. If the core is in debug state, the value returned is 0xFFFFFFFF.
sleepcnt	Sleep Count This register is used to count the total number of cycles during which the processor is sleeping.

Structs

COMP0	Comparator 0 This register is used to write the reference value for comparator 0.
COMP1	Comparator 1 This register is used to write the reference value for comparator 1.
COMP2	Comparator 2 This register is used to write the reference value for comparator 2.
COMP3	Comparator 3 This register is used to write the reference value for comparator 3.
CPICNT	CPI Count This register is used to count the total number of instruction cycles beyond the first cycle.
CTRL	Control Use the DWT Control Register to enable the DWT unit.
CYCCNT	Current PC Sampler Cycle Count This register is used to count the number of core cycles. This counter can measure elapsed execution time. This is a free-running counter (this counter will not advance in power modes where free-running clock to CPU stops). The counter has three functions: 1: When CTRL.PCSAMPLEENA = 1, the PC is sampled and emitted when the selected tapped bit changes value (0 to 1 or 1 to 0) and any post-scalar value counts to 0. 2: When CTRL.CYCEVTENA = 1 , (and CTRL.PCSAMPLEENA = 0), an event is emitted when the selected tapped bit changes value (0 to 1 or 1 to 0) and any post-scalar value counts to 0. 3: Applications and debuggers can use the counter to measure elapsed execution time. By subtracting a start and an end time, an application can measure time between in-core clocks (other than when Halted in debug). This is valid to 2^32 core clock cycles (for example, almost 89.5 seconds at 48MHz).
EXCCNT	Exception Overhead Count This register is used to count the total cycles spent in interrupt processing.
FOLDCNT	Fold Count This register is used to count the total number of folded instructions. The counter increments on each instruction which takes 0 cycles.
FUNCTION0	Function 0 Use the DWT Function Registers 0 to control the operation of the comparator 0. This comparator can: 1. Match against either the PC or the data address. This is controlled by CYCMATCH. This function is only available for comparator 0 (COMP0). 2. Emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
FUNCTION1	Function 1 Use the DWT Function Registers 1 to control the operation of the comparator 1. This comparator can: 1. Perform data value comparisons if associated address comparators have performed an address match. This function is only available for comparator 1 (COMP1). 2. Emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
FUNCTION2	Function 2 Use the DWT Function Registers 2 to control the operation of the comparator 2. This comparator can emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
FUNCTION3	Function 3 Use the DWT Function Registers 3 to control the operation of the comparator 3. This comparator can emit data or PC couples, trigger the ETM, or generate a watchpoint depending on the operation defined by FUNCTION.
LSUCNT	LSU Count This register is used to count the total number of cycles during which the processor is processing an LSU operation beyond the first cycle.
MASK0	Mask 0 Use the DWT Mask Registers 0 to apply a mask to data addresses when matching against COMP0.
MASK1	Mask 1 Use the DWT Mask Registers 1 to apply a mask to data addresses when matching against COMP1.
MASK2	Mask 2 Use the DWT Mask Registers 2 to apply a mask to data addresses when matching against COMP2.
MASK3	Mask 3 Use the DWT Mask Registers 3 to apply a mask to data addresses when matching against COMP3.
PCSR	Program Counter Sample This register is used to enable coarse-grained software profiling using a debug agent, without changing the currently executing code. If the core is not in debug state, the value returned is the instruction address of a recently executed instruction. If the core is in debug state, the value returned is 0xFFFFFFFF.
RegisterBlock	Register block
SLEEPCNT	Sleep Count This register is used to count the total number of cycles during which the processor is sleeping.