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參數資料
| 型號： | S1C60L09D |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.08 MHz, MICROCONTROLLER, UUC70 |
| 封裝： | DIE-70 |
| 文件頁數： | 36/62頁 |
| 文件大?。?/td> | 476K |
| 代理商： | S1C60L09D |
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CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Stopwatch Timer)
S1C60N09 TECHNICAL MANUAL
EPSON
35
4.8.3 Interrupt function
The 10 Hz (approximate 10 Hz) and 1 Hz interrupts can be generated by the overflow of the SWL and
SWH stopwatch timers, respectively. Also, software can separately mask the frequencies as described
earlier.
Figure 4.8.3.1 is the timing chart for the stopwatch timer.
Address
Register
Stopwatch timer (SWL) timing chart
Stopwatch timer (SWH) timing chart
10 Hz interrupt request
1 Hz interrupt request
072H
(1/10 sec BCD)
071H
(1/100 sec BCD)
D0
D1
D2
D3
D0
D1
D2
D3
Fig. 4.8.3.1 Timing chart for stopwatch timer
As shown in Figure 4.8.3.1, the interrupts are generated by the overflow of the respective timers ("9"
changing to "0"). Also at this point, the corresponding interrupt factor flags (SWIT0, SWIT1) are set to "1".
The respective interrupts can be masked separately with the interrupt mask registers (EISWIT0, EISWIT1).
However, regardless of the setting of the interrupt mask registers, the interrupt factor flags are set to "1"
by the overflow of the corresponding timers.
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