參數(shù)資料
型號(hào)： PIC16C711-04/P
廠商： Microchip Technology
文件頁數(shù)： 32/177頁
文件大?。?/td> 0K
描述： IC MCU OTP 1KX14 A/D 18DIP
產(chǎn)品培訓(xùn)模塊： Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 25
系列： PIC® 16C
核心處理器： PIC
芯體尺寸： 8-位
速度： 4MHz
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，WDT
輸入/輸出數(shù)： 13
程序存儲(chǔ)器容量： 1.75KB（1K x 14）
程序存儲(chǔ)器類型： OTP
RAM 容量： 68 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x8b
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 18-DIP（0.300"，7.62mm）
包裝： 管件
配用： ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING
309-1059-ND - ADAPTER 18 ZIF BD W/18SO PLUGS
DVA16XP180-ND - ADAPTER DEVICE FOR MPLAB-ICE
AC164010-ND - MODULE SKT PROMATEII DIP/SOIC
127
7593L–AVR–09/12
AT90USB64/128
non-PWM modes refer to Table 15-1 on page 137. For fast PWM mode refer to Table 15-2 on
page 137, and for phase correct and phase and frequency correct PWM refer to Table 15-3 on
A change of the COMnx1:0 bits state will have effect at the first compare match after the bits are
written. For non-PWM modes, the action can be forced to have immediate effect by using the
FOCnx strobe bits.
15.8
Modes of operation
The mode of operation, that is, the behavior of the Timer/Counter and the Output Compare pins,
is defined by the combination of the Waveform Generation mode (WGMn3:0) and Compare Out-
put mode (COMnx1:0) bits. The Compare Output mode bits do not affect the counting sequence,
while the Waveform Generation mode bits do. The COMnx1:0 bits control whether the PWM out-
put generated should be inverted or not (inverted or non-inverted PWM). For non-PWM modes
the COMnx1:0 bits control whether the output should be set, cleared or toggle at a compare
For detailed timing information refer to “Timer/Counter timing diagrams” on page 134.
15.8.1
Normal mode
The simplest mode of operation is the Normal mode (WGMn3:0 = 0). In this mode the counting
direction is always up (incrementing), and no counter clear is performed. The counter simply
overruns when it passes its maximum 16-bit value (MAX = 0xFFFF) and then restarts from the
BOTTOM (0x0000). In normal operation the Timer/Counter Overflow Flag (TOVn) will be set in
the same timer clock cycle as the TCNTn becomes zero. The TOVn Flag in this case behaves
like a 17th bit, except that it is only set, not cleared. However, combined with the timer overflow
interrupt that automatically clears the TOVn Flag, the timer resolution can be increased by soft-
ware. There are no special cases to consider in the Normal mode, a new counter value can be
written anytime.
The Input Capture unit is easy to use in Normal mode. However, observe that the maximum
interval between the external events must not exceed the resolution of the counter. If the interval
between events are too long, the timer overflow interrupt or the prescaler must be used to
extend the resolution for the capture unit.
The Output Compare units can be used to generate interrupts at some given time. Using the
Output Compare to generate waveforms in Normal mode is not recommended, since this will
occupy too much of the CPU time.
15.8.2
Clear Timer on Compare Match (CTC) mode
In Clear Timer on Compare or CTC mode (WGMn3:0 = 4 or 12), the OCRnA or ICRn Register
are used to manipulate the counter resolution. In CTC mode the counter is cleared to zero when
the counter value (TCNTn) matches either the OCRnA (WGMn3:0 = 4) or the ICRn (WGMn3:0 =
12). The OCRnA or ICRn define the top value for the counter, hence also its resolution. This
mode allows greater control of the compare match output frequency. It also simplifies the opera-
tion of counting external events.
The timing diagram for the CTC mode is shown in Figure 15-6 on page 128. The counter value
(TCNTn) increases until a compare match occurs with either OCRnA or ICRn, and then counter
(TCNTn) is cleared.
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PIC16C711-20/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C711 DIP18
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