Silicon Laboratories Si47 Series Programming Manual page 119

Property 0x1A03. FM_HICUT_RELEASE_RATE
Sets the rate at which hi-cut increases the transition frequency. 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. The default is 20
(approximately 3.3 s).
RELEASE[15:0] = 65536/time, were time is the desired transition time in ms.
Available in: Si4740/41/42/43/44/45, Si4704/05-D50 and later, Si4706-C30 and later, Si4730/31/34/35/84/85-D50
and later
Default: 0x0014
Range: 0 (disabled), 1–32767
Note: Was property 0x180F in FW2.B.
Bit D15 D14 D13
Name
Property 0x1A04. FM_HICUT_MULTIPATH_TRIGGER_THRESHOLD
Sets the MULTIPATH level at which hi-cut begins to band limit. 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. The default is 20%.
Available in: Si4740/41/42/43/44/45, Si4704/05-D50 and later, Si4706-C30 and later, Si4730/31/34/35/84/85-D50
and later
Default: 0x0014
Range: 0–100
Note: Was property 0x1810 in FW2.B.
Bit D15 D14 D13
0 0 0
Name
Property 0x1A05. FM_HICUT_MULTIPATH_END_THRESHOLD
Sets the MULTIPATH level at which hi-cut reaches maximum band limiting. 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. The
default is 60%.
Available in: Si4740/41/42/43/44/45, Si4704/05-D50 and later, Si4706-C30 and later, Si4730/31/34/35/84/85-D50
and later
Default: 0x003C
Range: 0–100
Note: Was property 0x1811 in FW2.B.
Bit D15 D14 D13
0 0 0
Name
D12 D11 D10 D9
RELEASE[15:0]
D12 D11 D10 D9
0 0 0 0
D12 D11 D10 D9
0 0 0 0
Rev. 0.8
D8 D7 D6 D5 D4
D8 D7 D6 D5
0 0 MULT_TRIGGER[6:0]
D8 D7 D6 D5
0 0 MULT_END[6:0]
AN332
D3 D2 D1 D0
D4 D3 D2 D1 D0
D4 D3 D2 D1 D0
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