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參數(shù)資料
| 型號： | LPC2888FET180 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16/32-bit ARM microcontrollers; 8 kB cache, up to 1 MB flash, Hi-Speed USB 2.0 device, and SDRAM memory interface |
| 中文描述： | 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PBGA180 |
| 封裝： | 10 X 10 MM, 0.80 MM HEIGHT, PLASTIC, MO-195, SOT-640-1, TFBGA-180 |
| 文件頁數(shù)： | 18/34頁 |
| 文件大?。?/td> | 139K |
| 代理商： | LPC2888FET180 |
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LPC2880_LPC2888_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 22 June 2006
18 of 34
Philips Semiconductors
LPC2880; LPC2888
16/32-bit ARM microcontrollers with external memory interface
All 105 Pending signals are presented to each of the five output logic blocks. Each output
logic block includes a set of four Interrupt Output Mask Registers, each set totalling 105
bits, that control whether each signal applies to that output. These are logically ANDed
with the corresponding Pending signals, and the 105 results in each logic block are
logically ORed to make the output of the block. The 525 results can be read in the
Interrupt Output Pending Registers.
Outputs 0 to 3 are routed to the Interrupt Controller, in which each can be individually
enabled to cause an interrupt. Output 4 is routed to the Clock Generation Unit, in which it
can serve as a wake-up generator. The five outputs can be read in the Output Register.
6.9 General purpose timers
The LPC2880/LPC2888 contains two fully independent general purpose timers. Each
timer is a 32-bit wide down counter with selectable prescaler. The prescaler allows either
the system clock to be used directly, or the clock to be divided by 16 or 256.
Two modes of operation are available, free-running and periodic timer. In periodic timer
mode, the counter will generate an interrupt at a constant interval. In free-running mode
the timer will overflow after reaching its zero value and continue to count down from the
maximum value.
6.9.1
Features
Two independent 32-bit timers.
Free-running or periodic operating modes.
Generate timed interrupts.
6.10 Watchdog timer
The purpose of the Watchdog Timer is to interrupt and/or reset the microcontroller within a
reasonable amount of time if it enters an erroneous state. When enabled, the Watchdog
will generate an interrupt or a system reset if the user program fails to reset the Watchdog
within a predetermined amount of time. Alternatively, it can be used as an additional
general purpose Timer.
The WDT clock increments a 32-bit Prescale Counter, the value of which is continually
compared to the value of the Prescale Register. When the Prescale Counter matches the
Prescale Register at a WDT clock edge, the Prescale Counter is cleared and the 32-bit
Timer Counter is incremented. Thus the Prescale facility divides the WDT clock by the
value in the Prescale Register plus one.
The value of the Timer Counter is continually compared to the values in two registers
called Match Register 0 and 1. When/if the value of the Timer Counter matches that of
Match Register 0 at a WDT clock edge, a signal ‘m0’ can be asserted to the Event Router,
which can be programmed to send an interrupt signal to the Interrupt Controller as a
result. When/if the value of the Timer Counter matches that of Match Register 1 at a WDT
clock edge, a signal ‘m1’ can be asserted to the CGU, which resets the chip as a result.
The CGU also includes a flag to indicate whether a reset is due to a Watchdog time-out.
6.10.1
Features
Optionally resets chip (via Clock Generation Unit) if not periodically reloaded.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2888FET180,551 | 功能描述:ARM微控制器 - MCU ARM7 1MF/64KR/USBH 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 安裝風格:SMD/SMT |
| LPC2888FET180/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16/32-bit ARM microcontrollers; 8 kB cache, up to 1 MB flash, Hi-Speed USB 2.0 device, and SDRAM memory interface |
| LPC2888FET180/01,5 | 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 安裝風格:SMD/SMT |
| LPC2888FET180/D,55 | 制造商:NXP Semiconductors 功能描述:PHALPC2888FET180/D.551 32BIT ARM7 HS USB |
| LPC2888FET180/D,551 | 制造商:NXP Semiconductors 功能描述: |
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