SI4736-B20 Datasheet, PDF (25/38 Pages) Silicon Laboratories – BROADCAST WEATHER BAND RADIO RECEIVER

Si4736/37/38/39-B20
5. Commands and Properties
Cmd
0x01
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x20
0x21
0x22
0x23
0x24
0x40
0x41
0x42
0x43
0x50
0x52
0x53
0x55
0x57
0x58
0x80
0x81
Table 14. Si473x Command Summary
Name
POWER_UP
GET_REV
POWER_DOWN
SET_PROPERTY
GET_PROPERTY
GET_INT_STATUS
PATCH_ARGS
PATCH_DATA
FM_TUNE_FREQ
FM_SEEK_START
FM_TUNE_STATUS
FM_RSQ_STATUS
FM_RDS_STATUS
AM_TUNE_FREQ
AM_SEEK_START
AM_TUNE_STATUS
AM_RSQ_STATUS
WB_TUNE_FREQ
WB_TUNE_STATUS
WB_RSQ_STATUS
WB_ASQ_STATUS
WB_AGC_STATUS
WB_AGC_OVERRIDE
GPO_CTL
GPO_SET
Description
Power up device and mode selection. Modes include AM or FM receive,
analog or digital output, and reference clock or crystal support.
Returns revision information on the device.
Power down device.
Sets the value of a property.
Retrieves a property’s value.
Read interrupt status bits.
Reserved command used for firmware file downloads.
Reserved command used for firmware file downloads.
Selects the FM tuning frequency.
Begins searching for a valid frequency.
Queries the status of previous FM_TUNE_FREQ or FM_SEEK_START
command.
Queries the status of the Received Signal Quality (RSQ) of the current
channel.
Returns RDS information for current channel and reads an entry from the
RDS FIFO (Si4737/39 only).
Tunes to a given AM frequency.
Begins searching for a valid frequency.
Queries the status of the already issued AM_TUNE_FREQ or AM_-
SEEK_START command.
Queries the status of the RSQ for the current channel.
Selects the WB tuning frequency.
Queries the status of the previous WB_TUNE_FREQ command.
Queries the status of the Received Signal Quality (RSQ) of the current chan-
nel.
Queries the status of the 1050 Hz alert tone.
Queries the status of the AGC.
Enable or disable the WB AGC.
Configures GPO3 as output or Hi-Z.
Sets GPO3 output level (low or high).
Rev. 1.0
25