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Cortex-M3 Processor Registers

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2.7.4.4 STRVR Register (Offset = 14h) [reset = X]

STRVR is shown in Figure 2-74 and described in Table 2-100.

SysTick Reload Value This register is used to specify the start value to load into the current value register

STCVR.CURRENT when the counter reaches 0. It can be any value between 1 and 0x00FFFFFF. A start

value of 0 is possible, but has no effect because the SysTick interrupt and STCSR.COUNTFLAG are

activated when counting from 1 to 0.

Figure 2-74. STRVR 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 RELOAD

R/W-X R/W-0h

Table 2-100. STRVR 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.

23-0 RELOAD R/W 0h

Value to load into the SysTick Current Value Register

STCVR.CURRENT when the counter reaches 0.

134

SWCU117A–February 2015–Revised March 2015

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