Texas Instruments CC2650DK ユーザーズマニュアル
Cortex-M3 Processor Registers
2.7.4.5
STCVR Register (Offset = 18h) [reset = X]
STCVR is shown in
and described in
SysTick Current Value Read from this register returns the current value of SysTick counter. Writing to this
register resets the SysTick counter (as well as STCSR.COUNTFLAG).
register resets the SysTick counter (as well as STCSR.COUNTFLAG).
Figure 2-75. STCVR Register
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
RESERVED
CURRENT
R/W-X
R/W-0h
Table 2-101. STCVR Register Field Descriptions
Bit
Field
Type
Reset
Description
31-24
RESERVED
R/W
X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
other value than the reset value may result in undefined behavior.
23-0
CURRENT
R/W
0h
Current value at the time the register is accessed. No read-modify-
write protection is provided, so change with care. Writing to it with
any value clears the register to 0. Clearing this register also clears
STCSR.COUNTFLAG.
write protection is provided, so change with care. Writing to it with
any value clears the register to 0. Clearing this register also clears
STCSR.COUNTFLAG.
135
SWCU117A – February 2015 – Revised March 2015
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