A N 5 4 3
64
Rev. 0.9
RESP
Bit
Name
Function
1
7:6
Reserved
Values may vary.
1
5
CHBWH_INT
(Available on Si475x-A40 only.)
If set, indicates that the channel filter bandwidth is greater than
the threshold set by FM_ACF_CHBW_THRESHOLD.
1
4
BLEND_INT
If set, indicates that stereo separation has crossed below the
blend threshold set by FM_ACF_BLEND_THRESHOLD.
1
3
HIBLEND_INT
If set, indicates that the HIBLEND cutoff frequency is lower than
the threshold as set by FM_ACF_HIBLEND_THRESHOLD.
1
2
HICUT_INT
If set, indicates that the HICUT cutoff frequency is lower than the
threshold set by FM_ACF_HICUT_THRESHOLD.
1
1
CHBW_INT
If set, indicates that the Channel Filter Bandwidth is less than
the threshold set by FM_ACF_CHBW_THRESHOLD.
1
0
SOFTMUTE_INT
If set, indicates that softmute attenuation has increased above
the softmute threshold as set by ACF_SM_THRESHOLD.
2
7:1
Reserved
Values may vary.
2
0
SMUTE
0 = Audio is not soft muted.
1 = Audio is soft muted.
3
7:5
Reserved
Values may vary.
3
4:0
SMATTN[7:0]
Soft mute attenuation level in dB.
Range: 0–31.
4
7:0
CHBW[7:0]
Channel filter bandwidth in kHz.
Range: 0–150.
5
7:0
HICUT[7:0]
LPR cutoff frequency in units of 100 Hz.
Range: 10–180.
6
7:0
HIBLEND[7:0]
LMR cutoff frequency in units of 100 Hz.
Range: 10–180.
7
7
PILOT
0 = Stereo pilot is not present.
1 = Stereo pilot is present.
7
6:0
STBLEND[6:0]
Indicates stereo separation. STBLEND will only be non-zero if
PILOT = 1. Range 0–100.
8
7:0
LOWCUT[7:0]
(Available in Si475x-A30 and later.)
Lowcut cutoff frequency in units of 10 Hz. Only available if low-
cut is enabled by the FM_LOWCUT_MIN_FREQ property.
Range 1–100.
