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RL78/G1H
CHAPTER 18 RF TRANSCEIVER
Page 583 of 920
(16) CSMA control register 1 (BBCSMACON1)
This register controls the CSMA-CA operation.
The NB bit is used to set the macMaxCSMABackoff value. (Initial value is 0H)
The CW bit is used to set the CW value. (Initial value is 2H)
The BBCSMACON1 register consists of 8 bits and can be accessed (serial interface communication) in 8 bit
unit.
Reset signal generation sets this register to 20H.
Figure 18 - 22 CSMA Control Register 1 (BBCSMACON1) Format
Caution
Be sure to clear bits 3, 6 and 7 to “0”.
Address: 0012H
After reset: 20H
R/W
Symbol
7
6
5
4
3
2
1
0
BBCSMA
CON1
0
0
CW1
CW0
0
NB2
NB1
NB0
CW1, CW0
CW value
NB[2:0]
The macMaxCSMABackoff value
Summary of Contents for RL78/G1H
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