RL78/G1H CHAPTER 18 RF TRANSCEIVER
R01UH0575EJ0120 Rev. 1.20 Page 655 of 920
Dec 22, 2016
18.6 RF Mode
18.6.1 RF operating mode
RF operating mode is classified into the following three modes.
(1) RF transmission mode
Indicates the transmission state. Outputs the data written in the data RAM to the RFOUT pin in the specified
format.
(2) RF reception mode
Indicates the reception state. Receives the signal input from the RFIP pin.
(3) IDLE mode
Power supply circuit (DDC/LDO) and 48 MHz crystal oscillator circuit are activated. The settings and data of
each register in the RF transceiver are retained.
-Returns to IDLE after completion of operation in case of transmission.
-Returns to IDLE after completion of operation or setting RFSTOP bit to 1 in case of reception.
-Returns to IDLE after completion of operation or setting RFSTOP bit to 1 in case of CCA..
18.6.2 RF standby mode
RF standby mode has the following mode.
(1) SLEEP mode
Turns all the RF transceiver internal circuits to the OFF state. Each register is reset to default value, and setting
is also disabled. To change to the IDLE state, Wake Up (startup sequence) must be executed according to the
procedures in 18.6.4.
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