Renesas RL78 Series User Manual page 781

RL78/G1D
Note
Address: 000C2H/010C2H
7
CMODE1
CMODE1
0
1
1
Other than above
FRQSEL3
1
0
1
0
1
0
1
0
1
1
Note Set the same value as 000C2H to 010C2H when the boot swap operation is used because 000C2H is replaced
by 010C2H.
Cautions 1. Be sure to set bit 5 to "1" and bit 4 to "0"
2. The ranges of operation frequency and operation voltage vary depending on the flash operation
mode. For details, see 30.6 AC Characteristics.
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Figure 25-3. Format of Option Byte (000C2H/010C2H)
6 5
CMODE0 1
CMODE0
0
LV (low voltage main) mode
0 LS (low speed main) mode
1
HS (high speed main) mode
Setting prohibited
FRQSEL2 FRQSEL1
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
Other than above
4 3
0 FRQSEL3
Setting of flash operation mode
Operating
Frequency Range (f
1 to 4 MHz
1 to 8 MHz
1 to 16 MHz
1 to 32 MHz
FRQSEL0 Frequency of the high-speed on-chip oscillator
0
32 MHz
0 24 MHz
1
16 MHz
1
12 MHz
0 8 MHz
0 6 MHz
1
4 MHz
1
3 MHz
0 2 MHz
1 1 MHz
Setting prohibited
CHAPTER 25 OPTION BYTE
2 1
FRQSEL2 FRQSEL1
Operating Voltage
) Range (V
MAIN
1.6 to 3.6 V
1.8 to 3.6 V
2.4 to 3.6 V
2.7 to 3.6 V
0
FRQSEL0
)
DD
760