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參數(shù)資料
| 型號(hào)： | S3C70F2XX-SO |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO32 |
| 封裝： | 0.450 INCH, SOP-32 |
| 文件頁(yè)數(shù)： | 33/179頁(yè) |
| 文件大?。?/td> | 1070K |
| 代理商： | S3C70F2XX-SO |
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TIMERS and TIMER/COUNTERS
S3C70F2/C70F4/P70F4
11-8
8-BIT TIMER/COUNTER 0 (TC0)
Timer/counter 0 (TC0) is used to count system 'events' by identifying the transition (high-to-low or low-to-high) of
incoming square wave signals. To indicate that an event has occurred, or that a specified time interval has
elapsed, TC0 generates an interrupt request. By counting signal transitions and comparing the current counter
value with the reference register value, TC0 can be used to measure specific time intervals.
TC0 has a reloadable counter that consists of two parts: an 8-bit reference register (TREF0) into which you write
the counter reference value, and an 8-bit counter register (TCNT0) whose value is automatically incremented by
counter logic.
An 8-bit mode register, TMOD0, is used to activate the timer/counter 0 and to select the basic clock frequency to
be used for timer/counter 0 operations. You can modify the basic frequency dynamically by loading new values
into TMOD0 during program execution.
TC0 FUNCTION SUMMARY
8-bit programmable timer
Generates interrupts at specific time intervals based on the selected clock fre-
quency.
External event counter
Counts various system "events" based on edge detection of external clock sig-
nals at the TC0 input pin, TCL0. To start the event counting operation,
TMOD0.2 is set to "1" and TMOD0.6 is cleared to "0".
Arbitrary frequency output
Outputs selectable clock frequencies to the TC0 output pin, TCLO0.
External signal divider
Divides the frequency of an incoming external clock signal according to a
modifiable reference value (TREF0), and outputs the modified frequency to the
TCLO0 pin.
Serial I/O clock source
Outputs a modifiable clock signal for use as the
SCK clock source.
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| S3C70F4XX-AV | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP30 |
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| S3P72M9-QA | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3C7414XX-AQ | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP42 |
| S3C7414XX-QZ | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S3C70F4 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C70F2/C70F4 single-chip CMOS microcontroller has been designed for high-performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange |
| S3C7235 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange |
| S3C7238 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange |
| S3C7281 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7281 is a SAM48 core-based 4-bit CMOS single-chip microcontroller. It is built around the SAM48 core CPU and contains ROM, RAM. |
| S3C7295 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:The S3C7295 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrangeable M |
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