Renesas RL78/G1H

RL78/G1H CHAPTER 18 RF TRANSCEIVER
R01UH0575EJ0120 Rev. 1.20 Page 623 of 920
Dec 22, 2016
(56) Modulation method setting register (BBMODSET)
This register is used to set the modulation method.
The modulation method setting bit is used to set the modulation method.
The modulation index setting bit is used to set the modulation index. Table 18 - 9 shows the setting value
setting examples for the modulation index setting bit.
The BBMODSET register consists of 8 bits and can be accessed (serial interface communication) in 8 bit
unit.
Reset signal generation sets this register to 42H.
Figure 18 - 69 Modulation Method Setting Register (BBMODSET) Format
Caution Be sure to clear bits 2 to 5 to “0”.
Address:
00B1H
After reset: 42H R/W
Symbol76543210
BBMODSET MODINDEX1MODINDEX00000MODSET1MODSET0
MODINDEX1 MODINDEX0 Modulation index setting bit
000.5
011.0
100.33
1 1 Setting prohibited
MODSET1 MODSET0 Modulation method setting bit
002FSK
014FSK
1 0 2GFSK (Initial value)
114GFSK
Table 18 - 9 Modulation Index Setting Bit Setting Examples
MODINDEX1 MODINDEX0 Data rate Modulation method Modulation index Deviation
0 0 50 kbps 2FSK/GFSK 0.5
±12.5 kHz
0 0 100 kbps 2FSK/GFSK 0.5
±25 kHz
0 1 50 kbps 2FSK/GFSK 1.0
±25 kHz
0 1 100 kbps 2FSK/GFSK 1.0
±50 kHz
1 0 200 kbps 4FSK/GFSK 0.33
±25 kHz