Renesas RL78 Series User Manual page 192

RL78/G1D
Address: F01B6H, F01B7H (TPS0)
Symbol 15 14
TPSm 0 0
PRS PRS
mk3 mk2
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
Note When changing the clock selected for f
stop timer array unit (TTm = 00FFH).
Cautions 1. Be sure to clear bits 15, 14, 11, 10 to "0".
2. If f
CLK
0, m = 0 to 7), interrupt requests output from timer array units cannot be used.
Remarks 1. f : CPU/peripheral hardware clock frequency
CLK
2. Waveform of the clock to be selected in the TPSm register which becomes high level for one period
of f
CLK
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Figure 7-10. Format of Timer Clock Select register m (TPSm) (1/2)
After reset: 0000H
13 12 11 10
PRS PRS 0 0
m31 m30
PRS PRS
mk1 mk0
0 0 f
CLK
0 1 f /2
CLK
2
1 0 f /2
CLK
3
1 1 f /2
CLK
4
0 0 f /2
CLK
5
0 1 f /2
CLK
6
1 0 f /2
CLK
7
1 1 f /2
CLK
8
0 0 f /2
CLK
9
0 1 f /2
CLK
10
1 0 f /2
CLK
11
1 1 f /2
CLK
12
0 0 f /2
CLK
13
0 1 f /2
CLK
14
1 0 f /2
CLK
15
1 1 f /2
CLK
(undivided) is selected as the operation clock (CKmk) and TDRnm is set to 0000H (n =
from its rising edge (m = 0). For details, see 7.5.1 Count clock (f
R/W
9 8 7 6
PRS PRS PRS PRS
m21 m20 m13 m12
Selection of operation clock (CKmk)
f = 2 MHz f = 5 MHz f
CLK CLK
2 MHz 5 MHz
1 MHz 2.5 MHz
500 kHz 1.25 MHz
250 kHz 625 kHz
125 kHz 313 kHz
62.5 kHz 156 kHz
31.3 kHz 78.1 kHz
15.6 kHz 39.1 kHz
7.81 kHz 19.5 kHz
3.91 kHz 9.77 kHz
1.95 kHz 4.88 kHz
977 Hz 2.44 kHz
488 Hz 1.22 kHz
244 Hz 610 Hz
122 Hz 305 Hz
61.0 Hz 153 Hz
(by changing the system clock control register (CKC) value),
CLK
CHAPTER 7 TIMER ARRAY UNIT
5 4 3 2
PRS PRS PRS PRS
m11 m10 m03 m02
Note
(k = 0, 1)
= 10 MHz f = 20 MHz f
CLK CLK
10 MHz 20 MHz
5 MHz 10 MHz
2.5 MHz 5 MHz
1.25 MHz 2.5 MHz
625 kHz 1.25 MHz
313 kHz 625 kHz
156 kHz 313 kHz
78.1 kHz 156 kHz
39.1 kHz 78.1 kHz
19.5 kHz 39.1 kHz
9.77 kHz 19.5 kHz
4.88 kHz 9.77 kHz
2.44 kHz 4.88 kHz
1.22 kHz 2.44 kHz
610 Hz 1.22 kHz
305 Hz 610 Hz
).
TCLK
1 0
PRS PRS
m01 m00
= 32 MHz
CLK
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
7.81 kHz
3.91 kHz
1.95 kHz
977 Hz
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