FX2N-5A Special function block Buffer Memory (BFM) 7
7-25
7.2.16 BFM 25 Filter-level selection register (READ/WRITE)The following Table shows the possible values of BFM 25 for using the digital Filter of the FX2N-5A-Device:Table 7.2: Bit assignment in BFM 25
Bit No. Channel No. Description
b0
CH1 to CH4
Filter: 0 = off
1 = 2nd level
2 = 5th level
3 = 7th level
b1
b2
b3
b4
CH1 to CH4
Cut-off frequency factor F1:
0 = no cut-off frequency selected
1 = (0.1×1/sampling time)Hz
2 = (0.05×1/sampling time)Hz
3 = (0.025×1/sampling time)Hz
4 = (0.01×1/sampling time)Hz
b5
b6
b7
b8 reserved
b9 reserved
b10 reserved
b11 reserved
b12 reserved
b13 reserved
b14 reserved
b15 reserved