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7.
Exceptions
7.6
Exception/Interrupt-Related Registers
7.6.2
NVIC Registers
7.6.2.1
bit symbol
After reset
bit symbol
After reset
bit symbol
After reset
bit symbol
After reset
Bit
Bit Symbol
31-17
−
16
COUNTFLAG
15-3
−
2
CLKSOURCE
1
TICKINT
0
ENABLE
2019-02-06
SysTick Control and Status Register
31
30
-
-
0
0
23
22
-
-
0
0
15
14
-
-
0
0
7
6
-
-
0
0
Type
R
Read as 0.
R/W
0: Timer not counted to 0
1: Timer counted to 0
Returns "1" if timer counted to "0" since last time this was read.
Clears on read of any part of the SysTick Control and Status Register.
R
Read as 0.
R/W
0: External reference clock (fosc/32).(Note)
1: CPU clock (fsys)
R/W
0: Do not pend SysTick
1: Pend SysTick
R/W
0: Disable
1: Enable
If "1" is set, it reloads with the value of the Reload Value Register and starts operation.
Note: In this product, the systick timer counts based on an external reference clock obtained by 32 divid-
ing the fosc which is selected by the bits <OSCSEL> of the register CGOSCCR.
29
28
27
-
-
-
0
0
0
21
20
19
-
-
-
0
0
0
13
12
11
-
-
-
0
0
0
5
4
3
-
-
-
0
0
0
Function
Page 96
TMPM3V6/M3V4
26
25
-
-
0
0
18
17
-
-
COUNTFLAG
0
0
10
9
-
-
0
0
2
1
CLKSOURCE
TICKINT
0
0
24
-
0
16
0
8
-
0
0
ENABLE
0
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