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參數(shù)資料
| 型號： | LPC2925FBD100 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | ARM9 microcontroller with CAN, LIN, and USB |
| 中文描述： | 32-BIT, FLASH, 125 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT407-1, LQFP-100 |
| 文件頁數(shù)： | 20/84頁 |
| 文件大?。?/td> | 551K |
| 代理商： | LPC2925FBD100 |
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LPC2921_23_25_3
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 14 April 2010
20 of 84
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN, LIN, and USB
6.8.6
EEPROM
EEPROM is a non-volatile memory mostly used for storing relatively small amounts of
data, for example for storing settings. It contains one 16 kB memory block and is
byte-programmable and byte-erasable.
The EEPROM can be accessed only through the flash controller.
6.9 General Purpose DMA (GPDMA) controller
The GPDMA controller allows peripheral-to-memory, memory-to-peripheral,
peripheral-to-peripheral, and memory-to-memory transactions. Each DMA stream
provides unidirectional serial DMA transfers for a single source and destination. For
example, a bidirectional port requires one stream for transmit and one for receives. The
source and destination areas can each be either a memory region or a peripheral, and
can be accessed through the same AHB master or one area by each master.
The GPDMA controls eight DMA channels with hardware prioritization. The DMA
controller interfaces to the system via two AHB bus masters, each with a full 32-bit data
bus width. DMA operations may be set up for 8-bit, 16-bit, and 32-bit data widths, and can
be either big-endian or little-endian. Incrementing or non-incrementing addressing for
source and destination are supported, as well as programmable DMA burst size. 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.
6.9.1
DMA support for peripherals
The GPDMA supports the following peripherals: SPI0/1/2 and UART0/1. The GPDMA can
access both embedded SRAM blocks, both TCMs, external static memory, and flash
memory.
6.9.2
Clock description
The DMA controller is clocked by CLK_SYS_DMA derived from BASE_SYS_CLK, see
Section 6.7.2
.
6.10 USB interface
The Universal Serial Bus (USB) is a 4-wire bus that supports communication between a
host and one or more (up to 127) peripherals. The bus supports hot plugging and dynamic
configuration of the devices. All transactions are initiated by the Host controller.
The LPC2921/2923/2925 USB interface includes a device controller with on-chip PHY for
device. Details on typical USB interfacing solutions can be found in
Section 10.2
.
6.10.1
USB device controller
The device controller enables 12 Mbit/s data exchange with a USB Host controller. It
consists of a register interface, serial interface engine, endpoint buffer memory, and a
DMA controller. The serial interface engine decodes the USB data stream and writes data
to the appropriate endpoint buffer. The status of a completed USB transfer or error
condition is indicated via status registers. An interrupt is also generated if enabled. When
enabled, the DMA controller transfers data between the endpoint buffer and the on-chip
SRAM.
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相關(guān)代理商/技術(shù)參數(shù) |
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| LPC2925FBD100,551 | 功能描述:ARM微控制器 - MCU IC ARM9 MCU FLASH 512KB 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 |
| LPC2926 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| LPC2926FBD144 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| LPC2926FBD144,557 | 制造商:NXP Semiconductors 功能描述:LPC2926FBD144/LQFP144/TRAYDPM/ - Trays 制造商:NXP Semiconductors 功能描述:IC MCU ARM9 256KB FLASH 144LQFP |
| LPC2927 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
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