LR1110
User Manual
Rev.1.0
UM.LR1110.W.APP
March 2020
24 of 130
Semtech
Stat1
and
Stat2
are always sent when the host issues a command. Only Stat1 is sent back when retrieving data from the
LR1110.
The command
GetStatus( )
allows returning the status registers.
3.3.1 Stat1
•
Command Status
determines the status of the last command sent by the host:
0
= CMD_FAIL:
the last command could not be executed
1
= CMD_PERR:
the last command could not be processed (wrong opcode, arguments). It is possible to generate an
interrupt on DIO if a command error occurred
.
2
= CMD_OK:
the last command was processed successfully.
3
= CMD_DAT: the last command was a successfully processed, and data is currently transmitted instead of IRQ
status.
•
Interrupt Status
indicates if a LR1110 system interrupt was raised.
0
:
No interrupt active
1
:
At least 1 interrupt active
3.3.2 Stat2
•
Reset Status
allows the host to determine the origin of a LR1110 reset:
0
= Cleared (no active reset)
1
= Analog reset (Power On Reset, Brown-Out Reset)
2
= External reset (NRESET pin)
3
= System reset
4
= Watchdog
5= IOCD restart
6
= RTC restart
•
Chip Mode
allows the host to determine the current mode of the LR1110:
0
= Sleep.
1
= Standby with RC Oscillator
.
2
= Standby with Xtal Oscillator.
Table 3-1: Stat1
Bits
(7:4)
(3:1)
(0)
Name
RFU
Command Status
Interrupt Status
Table 3-2: Stat2
Bits
(7:4)
(3:1)
(0)
Name
Reset Status
Chip Mode
Bootloader
