R01UH0823EJ0100 Rev.1.00
Page 1476 of 1823
Jul 31, 2019
RX23W Group
41. Bluetooth Low Energy (BLE)
41.2
Operation
41.2.1
State Transitions
is the State Transition Diagram of the BLE.
Figure 41.2
State Transition Diagram of the BLE
RF Power-Down Mode
The RF power-down mode is the initial mode of the BLE after release from the reset state.
Power is supplied to the MCU, but not to the RF transceiver.
Waiting Mode
In waiting mode, the BLE waits until the transmission or reception of data or a transition to sleep mode is requested.
RF Sleep Mode
The RF sleep mode is a low-power operating mode and the power supply, except to part of the link-layer circuit, is
stopped.
Transmit Mode
The transmit mode is for the transmission of data.
The mode shifts to waiting mode after the data have been transmitted.
Receive Mode
The receive mode is for the reception of data.
The mode shifts to waiting mode after the data have been received.
Receive
mode
RF power-
down mode
Waiting mode
RF sleep
mode
Reset
Transmit
mode