RL78/G1H CHAPTER 18 RF TRANSCEIVER
R01UH0575EJ0120 Rev. 1.20 Page 615 of 920
Dec 22, 2016
(45) Communication status register 3 (COMSTATE3)
This register is used to display the communication status.
The number of retransmissions can be read when the auto-ACK receive mode is enabled by the number-of-
retransmission read bit.
The number of times finally performing the CCA can be read by using the number-of-CCA-time read bit.
The COMSTATE3 register consists of 8 bits and can be accessed (serial interface communication) in 8 bit
unit.
Reset signal generation clears this register to 00H.
Figure 18 - 58 Communication Status Register 3 (COMSTATE3) Format
Caution “0” is always read for bit 7.
Address:
006FH
After reset: 00H R
Symbol76543210
COMSTATE3
0 CCARD RETRNRD
CCARD The number of CCA times which is finally performed (3 bits)
RETRNRD The number of retransmissions (4 bits) when the auto-ACK receive mode is enabled.