Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO 数据表
产品代码
ATSAM4E-XPRO
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
262
12.10.1.3 SysTick Current Value Register
Name:
SYST_CVR
Access: Read/Write
Reset: 0x000000000
The SysTick SYST_CVR contains the current value of the SysTick counter.
CURRENT: SysTick Counter Current Value
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.
31
30
29
28
27
26
25
24
–
23
22
21
20
19
18
17
16
CURRENT
15
14
13
12
11
10
9
8
CURRENT
7
6
5
4
3
2
1
0
CURRENT