User Manual
257
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Arm® Cortex®-M0 Core
SysTick Calibration Value Registers
Field
Bits
Type
Description
RES
31:24
r
Reserved
CURRENT
23:0
rw
Current
Reads return the current value of the SysTick counter.
A write of any value clears the field to 0, and also clears the
SYST_CSR.COUNTFLAG bit to 0.
Table 138 RESET
Register Reset Type
Reset Values
Reset Short Name
Reset Mode
Note
RESET_TYPE_3
00XXXXXX
H
RESET_TYPE_3
CPU_SYSTICK_CALIB
Offset
Reset Value
SysTick Calibration Value Register
01C
H
see
Field
Bits
Type
Description
NOREF
31
r
No Reference Clock
Indicates that no separate reference clock is provided.
Reads as 0
B
.
SKEW
30
r
Skew
Calibration value for the 10ms inexact timing is not known because
TENMS is not known. This can affect the suitability of SysTick as a
software real time clock.
Reads as 0
B
.
RES
29:24
r
Reserved
TENMS
23:0
r
Tenms
Indicates calibration value is not known.
If calibration information is not known, calculate the calibration value
required from the frequency of the processor clock or external clock.
Reads as zero.
31
31
r
NORE
F
30
30
r
SKEW
29
24
r
RES
23
16
r
TENMS
15
0
r
TENMS