RL78/G1H
CHAPTER 18 RF TRANSCEIVER
Page 663 of 920
18.7
Example of Procedure for Setting
18.7.1
Example of procedure for each operation
(1) Example of procedure for RF transmission
<1> Set to the IDLE state.
<2> Set the transmission frequency in the frequency setting register (BBFREQ).
For details, see
18.7.2 (2) RF frequency setting for transmission
.
<3> Set the transmission output power.
For details, see
<4> Set the AUTORCV0 bit of the transmission/reception mode register 0 (BBTXRXMODE0) to ”1” when
using automatic reception switch mode.
<5> Write in the transmission RAM: Bank 0 (0200H to 027FH address), Bank 1 (0280H to 02FFH address).
<6> Set the transmission frame length in the transmission frame length register (BBTXFLEN).
<7> Set the TRNTRG bit of the transmission/reception control register (BBTXRXCON) to ”1” (transmission
start).
After start of transmission, the transmission completion interrupt occurs when the following events occur.
• Transmission completion
• Transmission together with the ACK request with the ACK reception function enabled to complete the
ACK reception
• Failure in the ACK reception for a certain period of time after transmission together with the ACK request
with the ACK reception function enabled
• Channel busy as the CCA result after transmission with the automatic CSMA-CA enabled
Summary of Contents for RL78/G1H
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