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CC2541: If POWER_SAVING is not defined, can 32-KHz crystal be removed ?

Part Number: CC2541
Other Parts Discussed in Thread: CC2540,

Hi team,

Customer want TI to confirm if POWER_SAVING is not defined, can 32-KHz crystal be removed ?

In “TI_BLE_Software_Developer's_Guide.pdf”, I find below description. Which means if customer don’t define “POWER_SAVING”, CC2540/41 will not enter sleep mode.

  • POWER_SAVING – When defined, this symbol configures the system to go into sleep mode when free of any pending tasks.

 

In “cc2541 data sheet”, I find below description. Which means the 32-kHz crystal is only need when CC2540/41 run in low-power mode.

  (1) 32-kHz crystal is mandatory when running the BLE protocol stack in low-power modes, except if the link layer is in
the standby state (Vol. 6 Part B Section 1.1 in [1]).

So, if customer don’t define “POWER_SAVING”, CC2540/41 will not enter sleep mode. Therefore, 32-kHz crystal is not used, correct ?