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EM78P312N 数据表(PDF) 42 Page - ELAN Microelectronics Corp |
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EM78P312N 数据表(HTML) 42 Page - ELAN Microelectronics Corp |
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42 / 68 page  EM78P312N 8-Bit Microcontroller 38 • Product Specification (V1.0) 10.03.2006 (This specification is subject to change without further notice) 8-bit Up-counter Comparator TCR3B TC3CR MUX INT3ES TC3 pin TC2CK TC3S 2 TC3 Interrupt TCR3A fc/2 12 fc/2 10 fc/2 7 Edge Detector Capture Control TC3M Capture Capture CAP Inhibit Rising Falling Overflow M fs/2 4 fs/2 2 , , Fig. 5-22 Configuration of Timer/Counter3 5.10.1 Timer Mode In Timer mode, counting up is performed using the internal clock. When the contents of the up-counter matched with the TCR3DA, then interrupt is generated and the counter is cleared. Counting up resumes after the counter is cleared. The current contents of the up-counter are loaded into the TCR3DB by setting TC3CAP to “1” and the TC3CAP is cleared to “0” after capture automatically. 5.10.2 Counter Mode In Counter mode, counting up is performed using the external clock input pin (TC3 pin) and either rising or falling edge can be selected by INT3ES0 but both edge cannot be used. When the contents of the up-counter matched with the TCR3DA, then interrupt is generated and the counter is cleared. Counting up resumes after the counter is cleared. The current contents of the up-counter are loaded into the TCR3DB by setting TC3CAP to “1” and the TC3CAP is cleared to “0” after capture automatically. 5.10.3 Capture Mode In Capture mode, the pulse width, period and duty of the TC3 input pin are measured in this mode, which can be used in decoding the remote control signal. The counter is free running by the internal clock. On the rising (falling) edge of TC3 pin input, the contents of the counter is loaded into TCR3DA, then the counter is cleared and interrupt is generated. On the falling (rising) edge of TC3 pin input, the contents of the counter are loaded into TCR3DB. The counter is still counting, on the next rising edge |
类似零件编号 - EM78P312N |
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类似说明 - EM78P312N |
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