upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 173
upd78f0124m6gba1-8et
Manufacturer Part Number
upd78f0124m6gba1-8et
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124M6GBA1-8ET.pdf
(545 pages)
- Current page: 173 of 545
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Note Set the count clock to satisfy the following conditions.
Cautions 1. When the internal oscillation clock is selected as the clock to be supplied to the CPU, the
Remarks 1. f
Address: FF8CH
Symbol
TCL51
• V
• V
• V
• V
DD
DD
DD
DD
2. Figures in parentheses apply to operation at f
2. When rewriting TCL51 to other data, stop the timer operation beforehand.
3. Be sure to clear bits 3 to 7 to 0.
= 4.0 to 5.5 V: Count clock ≤ 10 MHz
= 3.3 to 4.0 V: Count clock ≤ 8.38 MHz
= 2.7 to 3.3 V: Count clock ≤ 5 MHz
= 2.5 to 2.7 V: Count clock ≤ 2.5 MHz
X
clock of the internal oscillator is divided and supplied as the count clock. If the count clock is
the internal oscillation clock, the operation of 8-bit timer/event counter 51 is not guaranteed.
: X1 input clock oscillation frequency
TCL512
7
0
0
0
0
0
1
1
1
1
After reset: 00H
Figure 7-6. Format of Timer Clock Selection Register 51 (TCL51)
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
TCL511
6
0
0
0
1
1
0
0
1
1
R/W
TCL510
User’s Manual U16315EJ3V1UD
5
0
0
1
0
1
0
1
0
1
TI51 falling edge
TI51 rising edge
f
f
f
f
f
f
X
X
X
X
X
X
/2 (5 MHz)
/2
/2
/2
/2
(10 MHz)
4
6
8
12
(625 kHz)
(156.25 kHz)
(39.06 kHz)
4
0
(2.44 kHz)
X
= 10 MHz.
3
0
Count clock selection
TCL512
2
Note
TCL511
1
TCL510
0
173
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