ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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Timer External Interrupt Status Register (TIMERx_EINTSTS)
Register
Offset
R/W Description
Reset Value
TIMER0_EINTSTS
T0x18
R/W Timer0 External Interrupt Status Register
0x0000_0000
TIMER1_EINTSTS
T0x118
R/W Timer1 External Interrupt Status Register
0x0000_0000
TIMER2_EINTSTS
T0x18
R/W Timer2 External Interrupt Status Register
0x0000_0000
TIMER3_EINTSTS
T0x118
R/W Timer3 External Interrupt Status Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
CAPIF
Bits
Description
[31:1]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[0]
CAPIF
Timer External Capture Interrupt Flag
This bit indicates the timer external capture interrupt flag status.
0 = TMx_EXT (x= 0~3) pin interrupt did not occur.
1 = TMx_EXT (x= 0~3) pin interrupt occurred.
Note1:
This bit is cleared by writing 1 to it.
Note2:
When CAPEN (TIMERx_EXTCTL[3]) bit is set, CAPFUNCS (TIMERx_EXTCTL[4])
bit is 0, and a transition on TMx_EXT (x= 0~3) pin matched the CAPEDGE
(TIMERx_EXTCTL[2:1]) setting, this bit will set to 1 by hardware.
Note3:
There is a new incoming capture event detected before CPU clearing the CAPIF
status. If the above condition occurred, the Timer will keep register TIMERx_CAP
unchanged and drop the new capture value.