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參數(shù)資料
| 型號： | MCF52234CAF60 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PQFP80 |
| 封裝： | LQFP-80 |
| 文件頁數(shù)： | 6/48頁 |
| 文件大?。?/td> | 633K |
| 代理商： | MCF52234CAF60 |
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MCF52235 ColdFire Microcontroller Data Sheet, Rev. 0
Preliminary
MCF52235 Family Configurations
Freescale Semiconductor
14
1.2.16 General Purpose Timer (GPT)
The general purpose timer (GPT) is a four-channel timer module consisting of a 16-bit programmable
counter driven by a 7-stage programmable prescaler. Each of the four channels can be configured for input
capture or output compare. Additionally, one of the channels, channel 3, can be configured as a pulse
accumulator.
A timer overflow function allows software to extend the timing capability of the system beyond the 16-bit
range of the counter. The input capture and output compare functions allow simultaneous input waveform
measurements and output waveform generation. The input capture function can capture the time of a
selected transition edge. The output compare function can generate output waveforms and timer software
delays. The 16-bit pulse accumulator can operate as a simple event counter or a gated time accumulator.
1.2.17 Periodic Interrupt Timers (PIT0 and PIT1)
The two periodic interrupt timers (PIT0 and PIT1) are 16-bit timers that provide interrupts at regular
intervals with minimal processor intervention. Each timer can either count down from the value written in
its PIT modulus register, or it can be a free-running down-counter.
1.2.18 Pulse Width Modulation Timers
The MCF52235 has an 8-channel, 8-bit PWM timer. Each channel has a programmable period and duty
cycle as well as a dedicated counter. Each of the modulators can create independent continuous waveforms
with software-selectable duty rates from 0% to 100%. The PWM outputs have programmable polarity, and
can be programmed as left aligned outputs or center aligned outputs. For higher period and duty cycle
resolution, each pair of adjacent channels ([7:6], [5:4], [3:2], and [1:0]) can be concatenated to form a
single 16-bit channel. The module can thus be configured to support 8/0, 6/1, 4/2, 2/3, or 0/4 8-/16-bit
channels.
1.2.19 Real-Time Clock (RTC)
The Real-Time Clock (RTC) module maintains the system (time-of-day) clock and provides stopwatch,
alarm, and interrupt functions. It includes full clock features: seconds, minutes, hours, days and supports
a host of time-of-day interrupt functions along with an alarm interrupt.
1.2.20 Software Watchdog Timer
The watchdog timer is a 16-bit timer that facilitates recovery from runaway code. The watchdog counter
is a free-running down-counter that generates a reset on underflow. To prevent a reset, software must
periodically restart the countdown.
1.2.21 Phase Locked Loop (PLL)
The clock module supports an external crystal oscillator and includes a phase-locked loop (PLL), reduced
frequency divider (RFD), low-power divider status/control registers, and control logic. In order to improve
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCF52234CAL60 | 功能描述:32位微控制器 - MCU KIRIN2E EPP RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| MCF52234CVM60 | 功能描述:32位微控制器 - MCU KIRIN2E 121 MAPBGA EPP RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| MCF52234CVM60J | 功能描述:32位微控制器 - MCU MCU 32-Bit RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| MCF52235 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire Microcontroller |
| MCF52235_06 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microcontroller |
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