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參數(shù)資料
| 型號： | LPC2377FBD144 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Single-chip 16-bit-32-bit microcontrollers; 512 kB flash with ISP-IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC-DAC |
| 中文描述： | 32-BIT, FLASH, 25 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT486-1, LQFP-144 |
| 文件頁數(shù)： | 28/68頁 |
| 文件大?。?/td> | 1443K |
| 代理商： | LPC2377FBD144 |
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LPC2377_78
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 5 — 17 June 2010
28 of 68
NXP Semiconductors
LPC2377/78
Single-chip 16-bit/32-bit microcontrollers
7.21 General purpose 32-bit timers/external event counters
The LPC2377/78 include four 32-bit Timer/Counters. The Timer/Counter is designed to
count cycles of the system derived clock or an externally-supplied clock. It can optionally
generate interrupts or perform other actions at specified timer values, based on four
match registers. The Timer/Counter also includes four capture inputs to trap the timer
value when an input signal transitions, optionally generating an interrupt.
7.21.1
Features
A 32-bit Timer/Counter with a programmable 32-bit prescaler.
Counter or Timer operation.
Up to four 32-bit capture channels per timer, that can take a snapshot of the timer
value when an input signal transitions. A capture event may also optionally generate
an interrupt.
Four 32-bit match registers that allow:
–
Continuous operation with optional interrupt generation on match.
–
Stop timer on match with optional interrupt generation.
–
Reset timer on match with optional interrupt generation.
Up to four external outputs corresponding to match registers, with the following
capabilities:
–
Set LOW on match.
–
Set HIGH on match.
–
Toggle on match.
–
Do nothing on match.
7.22 Pulse width modulator
The PWM is based on the standard Timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC2377/78. The Timer is designed to count
cycles of the system derived clock and optionally switch pins, generate interrupts or
perform other actions when specified timer values occur, based on seven match registers.
The PWM function is in addition to these features, and is based on match register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires
three non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
Two match registers can be used to provide a single edge controlled PWM output. One
match register (PWMMR0) controls the PWM cycle rate, by resetting the count upon
match. The other match register controls the PWM edge position. Additional single edge
controlled PWM outputs require only one match register each, since the repetition rate is
the same for all PWM outputs. Multiple single edge controlled PWM outputs will all have a
rising edge at the beginning of each PWM cycle, when an PWMMR0 match occurs.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2377FBD144,551 | 功能描述:ARM微控制器 - MCU 16/32 bit micro RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| LPC2378 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit microcontrollers; 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC/DAC |
| LPC2378FBD144 | 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM7 10/100 USB CAN 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM7, 10/100, USB, CAN |
| LPC2378FBD144,551 | 功能描述:ARM微控制器 - MCU ARM7 512KF/USB/ENET RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| LPC2378FBD144/CP32 | 制造商:NXP Semiconductors 功能描述:- Trays |
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