RL78/G1H CHAPTER 18 RF TRANSCEIVER
R01UH0575EJ0120 Rev. 1.20 Page 577 of 920
Dec 22, 2016
(11) Transmit/receive control register (BBTXRXCON)
This register controls the RF transmit/receive.
Setting “1” to the receive trigger bit starts warm-up of the RF circuit and enters into the reception available
state after 240 μs.
Setting “1” to the transmit trigger bit starts warm-up of the RF circuit and enters transmission after 350 μs.
Setting “1” to the CCA trigger bit starts warm-up of the RF circuit and enters CCA operation after 240 μs. Set
value other than 0H to BEMIN bits to perform CCA.
Be sure to set these bits under the state they are IDLE. Note that these bits are automatically cleared to “0”
upon completion of transmit/receive or of CCA. Stop the reception by using the RF communication stop bit
when you want to stop the operation in the middle.
Do not stop transmission during the operation.
The automatic ACK receive mode bit can select whether to perform the automatic ACK receive operation.
The BBTXRXCON register is set by the serial interface in 8-bit units.
Reset signal generation clears this register to 00H.
Figure 18 - 17 Transmit/Receive Control Register (BBTXRXCON) Format
Note Bits 2 to 0 are Write Only.
Caution Be sure to clear bits 4 to 7 to “0”.
Address:
000CH
After reset:
00H
R/W
Note
Symbol76543210
BBTXRXC
ON
0 0 0 0 ACKRCVEN CCATRG TRNTRG RCVTRG
ACKRCVEN Automatic ACK receive mode bit
0 Auto ACK receive disabled
1 Auto ACK receive enabled
CCATRG CCA trigger bit
0 Nothing performed
1CCA start
TRNTRG Transmission trigger bit
0 Nothing performed
1 Transmission start
RCVTRG Receive trigger bit
0 Nothing performed
1 Receive start
To Next Page
Loading...
