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參數(shù)資料
| 型號(hào)： | LPC2880 |
| 廠商： | NXP Semiconductors N.V. |
| 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： | 16/32位ARM微控制器; 8 KB的高速緩存，高達(dá)1 MB閃存，高速USB 2.0設(shè)備，SDRAM存儲(chǔ)器接口 |
| 文件頁數(shù)： | 19/34頁 |
| 文件大?。?/td> | 139K |
| 代理商： | LPC2880 |
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LPC2880_LPC2888_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 22 June 2006
19 of 34
Philips Semiconductors
LPC2880; LPC2888
16/32-bit ARM microcontrollers with external memory interface
Optional interrupt via Event Router.
32-bit Prescaler and 32-bit Counter allow extended watchdog period.
6.11 Real-time clock
The Real Time Clock (RTC) is a set of counters for measuring time when system power is
on, and optionally when it is off. It uses little power in either mode.
6.11.1
Features
Measures the passage of time to maintain a calendar and clock.
Ultra Low Power design to support battery powered systems.
Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and Day
of Year.
Dedicated 32 kHz oscillator.
Dedicated power supply pin can be connected to a battery or to the main 1.8 V.
6.12 General purpose DMA controller
The General Purpose DMA Controller (GPDMA) is an AMBA AHB compliant master
allowing selected LPC2880/LPC2888 peripherals to have DMA support. Peripherals that
can be serviced by the GPDMA channels include the MCI/SD card interface, UART TX
and/or RX, the I
2
C-bus interface, the Simple Analog Out (SAO) front-ends to the I2S/DAO
and 16-bit dual DACs, the Simple Analog In (SAI) interfaces for data from the I2S/DAI and
16-bit dual ADCs, and the output to the LCD interface.
6.12.1
Features
Eight DMA channels. Each channel can support a unidirectional transfer, or a pair of
channels can be used together to follow a linked list of buffer addresses and transfer
counts.
The GPDMA provides 16 peripheral DMA request lines. Most of these are connected
to the peripherals listed above; two can be used for external requests.
The GPDMA supports a subset of the flow control signals supported by ARM DMA
channels, specifically ‘single’ but not ‘burst’ operation.
Memory-to-memory, memory-to-peripheral, peripheral-to-memory, and
peripheral-to-peripheral transfers.
Scatter or gather DMA is supported through the use of linked lists. This means that
the source and destination areas do not have to occupy contiguous areas of memory.
Rotating channel priority. Each DMA channel has equal opportunity to perform
transfers.
The GPDMA is one of three AHB masters in the LPC2880/LPC2888, the others being
the ARM7 processor and the USB interface.
Incrementing or non-incrementing addressing for source and destination.
Supports 8-bit, 16-bit, and 32-bit wide transactions.
GPDMA channels can be programmed to swap data between big- and little-endian
formats during a transfer.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2880FET180 | 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 |
| LPC2880FET180,551 | 功能描述:ARM微控制器 - MCU ARM7 64KR/USB HOST ROMLESS 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(shí)鐘頻率:72 MHz 程序存儲(chǔ)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 |
| LPC2888 | 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 | 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 |
| LPC2888FET180,551 | 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(shí)鐘頻率:72 MHz 程序存儲(chǔ)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 |
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