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參數(shù)資料
| 型號： | LPC2923FBD100 |
| 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)： | 29/84頁 |
| 文件大?。?/td> | 551K |
| 代理商： | LPC2923FBD100 |
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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
29 of 84
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN, LIN, and USB
6.12.6.3
Clock description
The GPIO modules are clocked by several clocks, all of which are derived from
BASE_SYS_CLK; CLK_SYS_PESS and CLK_SYS_GPIOx (x = 0, 1, 5), see
Section 6.7.2
. Note that each GPIO has its own CLK__SYS_GPIOx branch clock for
power management. The frequency of all clocks CLK_SYS_GPIOx is identical to
CLK_SYS_PESS since they are derived from the same base clock BASE_SYS_CLK.
6.13 Networking subsystem
6.13.1
CAN gateway
Controller Area Network (CAN) is the definition of a high-performance communication
protocol for serial data communication. The two CAN controllers in the
LPC2921/2923/2925 provide a full implementation of the CAN protocol according to the
CAN specification version 2.0B
. The gateway concept is fully scalable with the number of
CAN controllers, and always operates together with a separate powerful and flexible
hardware acceptance filter.
The key features are:
Supports 11-bit as well as 29-bit identifiers.
Double receive buffer and triple transmit buffer.
Programmable error-warning limit and error counters with read/write access.
Arbitration-lost capture and error-code capture with detailed bit position.
Single-shot transmission (i.e. no re-transmission).
Listen-only mode (no acknowledge; no active error flags).
Reception of ‘own’ messages (self-reception request).
FullCAN mode for message reception.
6.13.1.1
Global acceptance filter
The global acceptance filter provides look-up of received identifiers - called acceptance
filtering in CAN terminology - for all the CAN controllers. It includes a CAN ID look-up table
memory, in which software maintains one to five sections of identifiers. The CAN ID
look-up table memory is 2 kB large (512 words, each of 32 bits). It can contain up to 1024
standard frame identifiers or 512 extended frame identifiers or a mixture of both types. It is
also possible to define identifier groups for standard and extended message formats.
6.13.1.2
Pin description
The two CAN controllers in the LPC2921/2923/2925 have the pins listed below. The CAN
pins are combined with other functions on the port pins of the LPC2921/2923/2925.
Table 17
shows the CAN pins (x runs from 0 to 1).
Table 17.
Symbol
CANx TXD
CANx RXD
CAN pins
Pin name
TXDC0/1
RXDC0/1
Direction
OUT
IN
Description
CAN channel x transmit data output
CAN channel x receive data input
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相關代理商/技術參數(shù) |
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|---|---|
| LPC2923FBD100,551 | 功能描述:ARM微控制器 - MCU IC ARM9 MCU FLASH 256KB 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 |
| LPC2925 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| LPC2925FBD100 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| 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 |
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