參數(shù)資料
型號(hào)： FM8P51EF
廠商： Electronic Theatre Controls, Inc.
英文描述： EPROM/ROM-Based 8-Bit Microcontroller
中文描述： 存儲(chǔ)器/基于ROM的8位微控制器
文件頁(yè)數(shù)： 36/60頁(yè)
文件大?。?/td> 369K
代理商： FM8P51EF
FM8P51
Rev1.2 Mar 15, 2005
P.36/FM8P51
FEELING
TECHNOLOGY
3. Enable the RFC module by set the RFCON bit.
4. Select one of RFCx pins by RFCS4:RFCS0 bits to enable the output pin for RC networks respectively. The
selected RFCx will output low at this time. Other RFCx pins will become of a tri-state type.
5. Set START bit to enable the RC oscillation network and 15-bit counter. The RC oscillation network will not
operate if this bit has not been set. After conversion is finished, the START bit will be cleared by hardware and
the RFCIF flag will be set (if enable).
2.9.2 Enable/Disable the Counter by CX Signal
In this module, CX pin is the signal to control the counter period and the clock source of the counter comes from the
internal system clock (Fosc).
The counter will start to count after the first rising edge signal applied on the CX pin after the RFCON bit
(RFCCON<7>) is set. Once the second rising edge is applied to the CX pin after the counter is enabled, the counter
will stop counting. And after the second falling edge is applied to the CX pin, the RFC block will clear the RFCON bit
and set the RFC interrupt flag RFCIF bit (INTFLAG<6>) if RFCIE bit is set.
User also can polling the RFCON or RFCIF bit to check if the conversion is finished.
FIGURE 2.14: The Sample of the RFC Counter Controlled by the CX Pin
START
CX signal on pin
CX signal
Counter active
RFC Counter
Fosc
RFCIF (if enabled)
By S/W
Counter starts
to count
Counting stops, caused by
the 2nd falling edge of CX
N
N-1
N-2
0
1
2
3
By H/W
相關(guān)PDF資料
PDF描述
FM8P51EP EPROM/ROM-Based 8-Bit Microcontroller
FM8P51F EPROM/ROM-Based 8-Bit Microcontroller
FM8P51P EPROM/ROM-Based 8-Bit Microcontroller
FM8P51E EPROM/ROM-Based 8-Bit Microcontroller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FM8P51EP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller
FM8P51F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller
FM8P51P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller
FM8P54 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller Series
FM8P54E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller Series
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