參數(shù)資料
型號(hào): S1C6S460D
元件分類(lèi): 微控制器/微處理器
英文描述: 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC124
封裝: 4.69 X 4.68 MM, DIE-124
文件頁(yè)數(shù): 70/107頁(yè)
文件大?。?/td> 788K
代理商: S1C6S460D
S1C6S460 TECHNICAL MANUAL
EPSON
57
CHAPTER 8: TIMERS
8.3.2 Interrupt function
The programmable timer generates interrupt after the down-count from the initial setting is completed
and the content of the down-counter indicates 00H.
After interrupt generation, the programmable timer reloads the initial count value into the down-counter
and resumes counting.
Figure 8.3.2.1 shows the timing chart of the programmable timer.
Interrupt
request
Note: When "A6H" is set into reload register
PTRST
PTRUN
Input clock
D3
D2
D1
D0
D3
D2
D1
D0
Timer data
high-order
address (F25H)
Timer data
low-order
address (F24H)
Fig. 8.3.2.1 Timing chart of programmable timer
When the down-counter values PT0–PT7 have become 00H the interrupt factor flag IPT is set to "1" and
an interrupt is generated. The interrupt can be masked through the interrupt mask register EIPT. How-
ever, regardless of the setting of the interrupt mask register, the interrupt factor flag is set to "1" when the
down-counter equals 00H.
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