Nested Vectored Interrupt Controller
Bits
Field
[31:24]
-
[23:0]
CURRENT
31
Bits
Field
Function
[31]
NOREF
1 = the reference clock is not provided.
8-12
Table 8-6 describes the bit assignments of the SysTick Current Value Register.
Function
Reserved
Current value at the time the register is accessed. No read-modify-write protection is provided,
so change with care.
This register is write-clear. Writing to it with any value clears the register to 0. Clearing this
register also clears the COUNTFLAG bit of the SysTick Control and Status Register.
SysTick Calibration Value Register
Use the SysTick Calibration Value Register to enable software to scale to any required
speed using divide and multiply.
The register address, access type, and Reset state are:
Address
0xE000E01C
Access
Read
Reset state
STCALIB
Figure 8-6 describes the bit assignments of the SysTick Calibration Value Register.
30
29
24
23
Reserved
SKEW
NOREF
Figure 8-6 SysTick Calibration Value Register bit assignments
Table 8-7 describes the bit assignments of the SysTick Calibration Value Register.
Copyright © 2005-2008 ARM Limited. All rights reserved.
Table 8-6 SysTick Current Value Register bit assignments
Table 8-7 SysTick Calibration Value Register bit assignments
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