Silicon Laboratories Si4704 Series Programming Manual page 134

AN332
Property 0x3404. AM_SEEK_TUNE_RSSI_THRESHOLD
Sets the RSSI threshold for a valid AM Seek/Tune. If the value is zero then RSSI is not used as a valid criteria
when doing a seek for AM. 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 when in powerup mode. The default is 25 dBµV.
Default: 0x0019
Units: dBµV
Step: 1
Range: 0–63
Bit D15 D14 D13
Name 0 0
Bit Name
15:6 Reserved
5:0 AMSKRSSI
Property 0x4000. RX_VOLUME
Sets the audio output volume. 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 when in powerup mode. The default is 63.
Default: 0x003F
Step: 1
Range: 0–63
Bit D15 D14 D13 D12
Name 0 0
Bit Name
15:6 Reserved
5:0 VOL
134
D12 D11 D10
0 0 0 0
Always write to 0.
AM Seek/Tune Received Signal Strength Threshold.
RSSI Threshold which determines if a valid channel has been found during
Seek/Tune. Specified in units of dBµV in 1 dBµV steps (0–63). Default threshold is
25 dBµV.
D11 D10
0 0 0 0
Always write to 0.
Output Volume.
Sets the output volume level, 63 max, 0 min. Default is 63.
Confidential Rev. 0.2
D9 D8 D7 D6
0 0 0 0
Function
D9 D8 D7 D6
0 0 0 0
Function
D5 D4 D3 D2
AMSKRSSI[5:0]
D5 D4 D3 D2
VOL[5:0]
D1 D0
D1 D0