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MN101C115 Datasheet, PDF (141/170 Pages) Panasonic Semiconductor – Request for your special attention and precautions in using the technical information and semiconductors described in this book
Chapter 7 AC Zero-Cross Circuit/Noise Filter
7-4-2 Noise Filter Control Register (NFCTR)
This 6-bit readable and writable register controls the noise filter.
NFCTR
7
6
5
4
3
2
1
0
–
– NF1CKS1 NF1CKS0 NF1EN NF0CKS1 NF0CKS0 NF0EN (at reset: --000000)
NF0EN IRQ0 noise filter setup and operation
0 IRQ0 noise filter off
1 IRQ0 noise filter on
NF0CKS1 NF0CKS0
0
0
1
1
0
1
IRQ0 noise filter
sampling period selection
fs/22
fs/28
fs/29
fs/210
NF1EN IRQ1 noise filter setup and operation
0 IRQ1 noise filter off
1 IRQ1 noise filter on
NF1CKS1 NF1CKS0
0
0
1
1
0
1
IRQ1 noise filter
sampling period selection
fs/22
fs/28
fs/29
fs/210
Figure 7-4-1 Noise Filter Control Register (NFCTR: X'03F8A', R/W)
AC Zero-Cross Control Register 127