LR1110
User Manual Rev.1.0
UM.LR1110.W.APP March 2020
24 of 130
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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
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