R01AN1504EJ0100 Datasheet, PDF (18/50 Pages) Renesas Technology Corp – Using the DTC to Perform Continuous Clock

RL78/G14
Setting the SAU0 operating clock
• Serial clock select register 0 (SPS0)
Using the DTC to Perform Continuous Clock
Synchronous Serial Communication
Symbol
SPS0
Value
15 14 13 12 11 10 9
0
0
0
0
0
0
0
‒‒‒‒‒‒‒
876543210
0 PRS PRS PRS PRS PRS PRS PRS PRS
013 012 011 010 003 002 001 000
‒××××010 0
•
PRS
003
Bits 3 to 0
PRS
PRS
002
001
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
PRS
000
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
fCLK
fCLK/2
fCLK/2²
fCLK/2³
fCLK/2⁴
fCLK/2⁵
fCLK/2⁶
fCLK/2⁷
fCLK/2⁸
fCLK/2⁹
fCLK/2¹⁰
fCLK/2¹¹
fCLK/2¹²
fCLK/2¹³
fCLK/2¹⁴
fCLK/2¹⁵
fCLK =
2 MHz
2 MHz
1 MHz
500 kHz
250 kHz
125 kHz
62.5 kHz
31.3 kHz
15.6 kHz
7.81 kHz
3.91 kHz
1.95 kHz
977 Hz
488 Hz
244 Hz
122 Hz
61 Hz
Select the operating clock (CK00)
fCLK =
5 MHz
fCLK =
10 MHz
fCLK =
20 MHz
5 MHz
10 MHz
20 MHz
2.5 MHz
5 MHz
10 MHz
1.25 MHz
2.5 MHz
5 MHz
625 kHz
1.25 MHz
2.5 MHz
313 kHz
625 kHz
1.25 MHz
156 kHz
313 kHz
625 kHz
78.1 kHz
156 kHz
313 kHz
39.1 kHz
78.1 kHz
156 kHz
19.5 kHz
39.1 kHz
78.1 kHz
9.77 kHz
19.5 kHz
39.1 kHz
4.88 kHz
9.77 kHz
19.5 kHz
2.44 kHz
4.88 kHz
9.77 kHz
1.22 kHz
2.44 kHz
4.88 kHz
610 Hz
1.22 kHz
2.44 kHz
305 Hz
610 Hz
1.22 kHz
153 Hz
305 Hz
610 Hz
fCLK =
32 MHz
32 MHz
16 MHz
8 MHz
4 MHz
2 MHz
1 MHz
500 kHz
250 kHz
125 kHz
62.5 kHz
31.3 kHz
15.6 kHz
7.8 kHz
3.9 kHz
1.95 kHz
977 Hz
For details on register setting, refer to the RL78/G14 User’s Manual: Hardware.
Legend symbol:
×: Unused bit; blank cell: unchanged bit; ‒: reserved bit or unallocated bit
R01AN1504EJ0100 Rev. 1.00
Feb. 14, 2014
Page 18 of 47