Chapter 2 Register Map and Descriptions
Static DIO Register-Level Programmer Manual
2-18
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Filter Interval 32-Bit Register
The filter interval register controls the filter interval for distinguishing between valid input
pulses and glitches. There are twenty bits in the filter interval register.
Address Offset:
0x08
Type:
Read-write
Size:
32-bit
Bit Map:
Bit
Name
Description
31–20
Reserved
Write only zeros to these bits.
19–0
FI(<19..0>)
Filter interval, bits 19 and down to 0 in increments of
200 ns.
For more information on digital filtering registers, refer to the
31
30
29
28
27
26
25
24
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
23
22
21
20
19
18
17
16
Reserved
Reserved
Reserved
Reserved
FI(19)
FI(18)
FI(17)
FI(16)
15
14
13
12
11
10
9
8
FI(15)
FI(14)
FI(13)
FI(12)
FI(11)
FI(10)
FI(9)
FI(8)
7
6
5
4
3
2
1
0
FI(7)
FI(6)
FI(5)
FI(4)
FI(3)
FI(2)
FI(1)
FI(0)