AN332
Confidential Rev. 0.2
153
Command 0x55. WB_ASQ_STATUS
Returns status information about the 1050kHz alert tone in Weather Band. The commands returns the alert on/off
Interrupt and the present state of the alert tone. The command clears the ASQINT bit when INTACK bit of ARG1 is
set. The CTS bit (and optional interrupt) is set when it is safe to send the next command. This command may only
be sent when in powerup mode.
Command arguments: One
Response bytes: Two
Command
Response
Bit
D7
D6
D5
D4
D3
D2
D1
D0
CMD
0
1
0
1
0
1
0
1
ARG1
0
0
0
0
0
0
0
INTACK
Arg
Bit
Name
Function
1
0
INTACK
Interrupt Acknowledge
0 = Interrupt status preserved.
1 = Clears ASQINT, ALERTOFF_INT, ALERTON_INT
Bit
D7
D6
D5
D4
D3
D2
D1
D0
STATUS
CTS
ERR
X
X
RSQINT
SAMEINT
ASQINT
STCINT
RESP1
X
X
X
X
X
X
ALERTOFF_INT
ALERTON_INT
RESP2
X
X
X
X
X
X
X
ALERT
Data
Bit
Name
Function
1
1
ALERTOFF_INT
ALERTOFF_INT.
0 = 1050 Hz alert tone has not been detected to be absent since the
last WB_TUNE_FREQ or WB_RSQ_STATUS with INTACK = 1.
1 = 1050 Hz alert tone has been detected to be absent since the last
WB_TUNE_FREQ or WB_RSQ_STATUS with INTACK = 1.
1
0
ALERTON_INT
ALERTON_INT.
0 = 1050 Hz alert tone has not been detected to be present since the
last WB_TUNE_FREQ or WB_RSQ_STATUS with INTACK = 1.
1 = 1050 Hz alert tone has been detected to be present since the last
WB_TUNE_FREQ or WB_RSQ_STATUS with INTACK = 1.
2
0
ALERT
ALERT.
0 = 1050 Hz alert tone is currently not present.
1 = 1050 Hz alert tone is currently present.