TEMP — Temperature sensor

The temperature sensor measures die temperature over the temperature range of the device. Linearity compensation can be implemented if required by the application.

Listed here are the main features for TEMP:

Temperature range is greater than or equal to operating temperature of the device
Resolution is 0.25 degrees

TEMP is started by triggering the START task.

When the temperature measurement is completed, a DATARDY event will be generated and the result of the measurement can be read from the TEMP register.

To achieve the measurement accuracy stated in the electrical specification, the crystal oscillator must be selected as the HFCLK source, see CLOCK — Clock control for more information.

When the temperature measurement is completed, TEMP analog electronics power down to save power.

TEMP only supports one-shot operation, meaning that every TEMP measurement has to be explicitly started using the START task.

Registers

Table 1. Instances
Base address	Peripheral	Instance	Description	Configuration
0x4000C000	TEMP	TEMP	Temperature sensor

Table 2. Register Overview
Register	Offset	Description
TASKS_START	0x000	Start temperature measurement
TASKS_STOP	0x004	Stop temperature measurement
EVENTS_DATARDY	0x100	Temperature measurement complete, data ready
INTENSET	0x304	Enable interrupt
INTENCLR	0x308	Disable interrupt
TEMP	0x508	Temperature in °C (0.25° steps)
A0	0x520	Slope of 1st piece wise linear function
A1	0x524	Slope of 2nd piece wise linear function
A2	0x528	Slope of 3rd piece wise linear function
A3	0x52C	Slope of 4th piece wise linear function
A4	0x530	Slope of 5th piece wise linear function
A5	0x534	Slope of 6th piece wise linear function
B0	0x540	y-intercept of 1st piece wise linear function
B1	0x544	y-intercept of 2nd piece wise linear function
B2	0x548	y-intercept of 3rd piece wise linear function
B3	0x54C	y-intercept of 4th piece wise linear function
B4	0x550	y-intercept of 5th piece wise linear function
B5	0x554	y-intercept of 6th piece wise linear function
T0	0x560	End point of 1st piece wise linear function
T1	0x564	End point of 2nd piece wise linear function
T2	0x568	End point of 3rd piece wise linear function
T3	0x56C	End point of 4th piece wise linear function
T4	0x570	End point of 5th piece wise linear function

INTENSET

Address offset: 0x304

Enable interrupt

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																																			A
Reset 0x00000000				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	DATARDY										Write '1' to Enable interrupt for DATARDY event See EVENTS_DATARDY
			Set	1								Enable
			Disabled	0								Read: Disabled
			Enabled	1								Read: Enabled

INTENCLR

Address offset: 0x308

Disable interrupt

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																																			A
Reset 0x00000000				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	DATARDY										Write '1' to Disable interrupt for DATARDY event See EVENTS_DATARDY
			Clear	1								Disable
			Disabled	0								Read: Disabled
			Enabled	1								Read: Enabled

TEMP

Address offset: 0x508

Temperature in °C (0.25° steps)

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id				A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00000000				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	R	TEMP										Temperature in °C (0.25° steps) Result of temperature measurement. Die temperature in °C, 2's complement format, 0.25 °C steps Decision point: DATARDY

A0

Address offset: 0x520

Slope of 1st piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00000320				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	1	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	A0										Slope of 1st piece wise linear function

A1

Address offset: 0x524

Slope of 2nd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00000343				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	0	0	0	0	1	1
Id	RW	Field	Value Id	Value								Description
A	RW	A1										Slope of 2nd piece wise linear function

A2

Address offset: 0x528

Slope of 3rd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x0000035D				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	0	1	1	1	0	1
Id	RW	Field	Value Id	Value								Description
A	RW	A2										Slope of 3rd piece wise linear function

A3

Address offset: 0x52C

Slope of 4th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00000400				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	A3										Slope of 4th piece wise linear function

A4

Address offset: 0x530

Slope of 5th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x0000047F				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	1	1	1	1	1	1	1
Id	RW	Field	Value Id	Value								Description
A	RW	A4										Slope of 5th piece wise linear function

A5

Address offset: 0x534

Slope of 6th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																								A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x0000037B				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	1	1	1	0	1	1
Id	RW	Field	Value Id	Value								Description
A	RW	A5										Slope of 6th piece wise linear function

B0

Address offset: 0x540

y-intercept of 1st piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00003FCC				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	0	0	1	1	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	B0										y-intercept of 1st piece wise linear function

B1

Address offset: 0x544

y-intercept of 2nd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00003F98				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	0	0	1	1	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	B1										y-intercept of 2nd piece wise linear function

B2

Address offset: 0x548

y-intercept of 3rd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00003F98				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	0	0	1	1	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	B2										y-intercept of 3rd piece wise linear function

B3

Address offset: 0x54C

y-intercept of 4th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00000012				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0
Id	RW	Field	Value Id	Value								Description
A	RW	B3										y-intercept of 4th piece wise linear function

B4

Address offset: 0x550

y-intercept of 5th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x0000006A				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	0	1	0
Id	RW	Field	Value Id	Value								Description
A	RW	B4										y-intercept of 5th piece wise linear function

B5

Address offset: 0x554

y-intercept of 6th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																						A	A	A	A	A	A	A	A	A	A	A	A	A	A
Reset 0x00003DD0				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	0	1	1	1	0	1	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	B5										y-intercept of 6th piece wise linear function

T0

Address offset: 0x560

End point of 1st piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																												A	A	A	A	A	A	A	A
Reset 0x000000E2				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	0	0	0	1	0
Id	RW	Field	Value Id	Value								Description
A	RW	T0										End point of 1st piece wise linear function

T1

Address offset: 0x564

End point of 2nd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																												A	A	A	A	A	A	A	A
Reset 0x00000000				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	T1										End point of 2nd piece wise linear function

T2

Address offset: 0x568

End point of 3rd piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																												A	A	A	A	A	A	A	A
Reset 0x00000014				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	T2										End point of 3rd piece wise linear function

T3

Address offset: 0x56C

End point of 4th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																												A	A	A	A	A	A	A	A
Reset 0x00000019				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	1
Id	RW	Field	Value Id	Value								Description
A	RW	T3										End point of 4th piece wise linear function

T4

Address offset: 0x570

End point of 5th piece wise linear function

Bit number				31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
Id																												A	A	A	A	A	A	A	A
Reset 0x00000050				0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1	0	0	0	0
Id	RW	Field	Value Id	Value								Description
A	RW	T4										End point of 5th piece wise linear function

Electrical specification

Temperature Sensor Electrical Specification

Symbol	Description	Min.	Typ.	Max.	Units
t_TEMP	Time required for temperature measurement		36		µs
T_TEMP,RANGE	Temperature sensor range	-40		85	°C
T_TEMP,ACC	Temperature sensor accuracy	-5		5	°C
T_TEMP,RES	Temperature sensor resolution		0.25		°C
T_TEMP,STB	Sample to sample stability at constant device temperature		+/-0.25		°C
T_TEMP,OFFST	Sample offset at 25°C	-2.5		2.5	°C