A N 5 4 3
102
Rev. 0.9
Property 0x1302 FM_ACF_CHBW_THRESHOLD
The FM_ACF_CHBW_THRESHOLD property sets the Channel Filter Bandwidth interrupt threshold in units of kHz.
When the Channel Filter Bandwidth falls below this threshold and the CHBW_INT interrupt is enabled through the
FM_ACF_INTERRUPT_SOURCE property, the CHBW_INT interrupt will be asserted. The CTS bit (and optional
interrupt) is set when it is safe to send the next command. This property may only be set or read in powerup mode.
Default: 0
Units: kHz
FM_ACF_CHBW_THRESHOLD
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CHBW_THRESH_HIGH[7:0]
CHBW_THRESH_LOW[7:0]
0x00
0x00
Bit
Name
Function
15:8
CHBW_THRESH_HIGH[7:0]
(Available in Si475x-A40 and later)
Channel Filter Bandwidth High interrupt threshold in units of kHz, which
triggers the Channel Filter Bandwidth High Interrupt when the channel fil-
ter bandwidth rises above this threshold.
Default is 0 kHz.
Range is 0–255 kHz
7:0
CHBW _THRESH_LOW[7:0]
Channel Filter Bandwidth interrupt threshold in units of kHz, which trig-
gers the Channel Filter Bandwidth Low interrupt when the Channel Filter
Bandwidth falls below this threshold.
Default is 0 kHz
Range is 0–255 kHz.
