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Register access in eWOR mode on CC1121

Nomo
Guru 16800 points
Other Parts Discussed in Thread: CC1121

Hello,

I have four questions about the register access in eWOR mode on CC1121.

1. In the SLEEP state (by the SWOR strobe), what does eWOR behave when the MCU access to a register in CC1121?
   Does eWOR mode stops because CSn is pulled to low?

2. When state is in SLEEP (with SWOR strobe) and the MCU access to a register (read or write), the automatic state transition (from SLEEP, through IDEL, to RX) stops.
   Is this a valid behavior?

3. In RX mode, despite the MCU access to a register, the state remains in RX.
   In the case of eWOR mode, does CC1121 not remain in the SLEEP state by a register access?

4. If the automatic state transition stops (the eWOR mode finishes) by a access from MCU, should I send a SWOR strobe to CC1121 to restart the automatic state transition?

Best Regards.

Nomoto

  • 0
    TI__Genius 12735 points

    Hi Nomonto

    1. Yes. Pulling CSn low will wake the radio from SLEEP and it will enter IDLE mode
    2. Same as 1. Anny attempt to access a register while the radio is in SLEEP state will the wake the radio up and it will go into IDLE
    3. In normal RX you can access the registers while the radio remains in RX. Using WOR any attempt to access the radio while in SLEEP will wake the radio up to IDLE mode and WOR needs to be restarted
    4. Yes.