Renesas RL78/G1H User Manual

RL78/G1H CHAPTER 18 RF TRANSCEIVER
R01UH0575EJ0120 Rev. 1.20 Page 666 of 920
Dec 22, 2016
18.7.2 Example of procedure for function setting
(1) Example of procedure for RF transmission output power setting
<1> See tables according to ”Frequency band identifier” in IEEE802.15.4g frequency/data rate 31.7.7
IEEE802.15.4g frequency/data rate table.
When it is 9, Table 18 - 17 to Table 18 - 19. When it is 4, see Table 18 - 20 to Table 18 - 22. When it
is 5 to 7, see Table 18 - 23 to Table 18 - 25. When it is 8, see Table 18 - 26 to Table 18 - 28.
<2> Set the data [1:0] of 0090H address according to the table. Fix the data [7:2] at ”111101b”.
When setting the data [1:0] of the 0090H address to 1H, set V
DDRF
Note
to 2.4 V or higher.
<3> Set the data [4:0] of the 0092H address according to Table 18 - 17 to Table 18 - 28.
Fix the data [7:5] at "011b".
<4> Set the data [4:0] of 00DCH address according to the table and 19H to address 00DH. Fix the data
[7:5] at ”000b”.
<5> Set the data [4:0] of 00DCH address according to the table and 25H to address 00DH. Fix the data
[7:5] at ”000b”.
<6> Set the data [7:4] of 00DCH address according to the table and 1AH to address 00DDH. Fix the data
[3:0] at ”0000b”.
Figure 18 - 108 to Figure 18 - 111 shows the relationship between the transmission output power and gain set.
The values may vary depending on the load conditions and samples. The combination of the coarse control and
fine control enables the wider range of the transmission output power.
Note Voltage of VCCRF and VCCDDC pins.
Caution Refer to the latest application note for setting values of Table 18 - 17 to Table 18 - 28 when to
use the product.
Table 18 - 17 Gain Set (Frequency band identifier = 9) (1/3)
Gain set
0090H
address
Bit [1:0]
0092H
address
Bit [4:0]
00DCH address Bit [4:0]
(00DDH address is set to
19H)
00DCH address Bit [4:0]
(00DDH address is set to
25H)
00DCH address Bit [7:4]
(00DDH address is set to
1AH)
0300 0 00 0
1300 0 1F 6
2301 0 1F 6
3302 0 1F 6
4303 0 1F 6
5304 0 1F 6
6305 0 1F 6
7306 0 1F 6
8307 0 1F 6
9308 0 1F 6
10309 0 1F 6
11 3 0A 0 1F 6
12 3 0B 0 1F 6
13 3 0C 0 1F 6
14 3 0D 0 1F 6
15 3 0E 0 1F 6
16 3 0F 0 1F 6
17310 0 1F 6
<R>

Renesas RL78/G1H Specifications

General

Brand	Renesas
Model	RL78/G1H
Category	Microcontrollers
Language	English