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| 型號： | LPC2926FBD144 |
| 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, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT486-1, LQFP-144 |
| 文件頁數(shù)： | 57/95頁 |
| 文件大小： | 1855K |
| 代理商： | LPC2926FBD144 |
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LPC2926_27_29
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 5 — 28 September 2010
57 of 95
NXP Semiconductors
LPC2926/2927/2929
ARM9 microcontroller with CAN, LIN, and USB
6.16.4.2
Pin description
The RGU module in the LPC2926/2927/2929 has the following pins.
Table 31
shows the
RGU pins.
Table 31.
Symbol
RST
6.16.5
Power Management Unit (PMU)
This module enables software to actively control the system’s power consumption by
disabling clocks not required in a particular operating mode.
Using the base clocks from the CGU as input, the PMU generates branch clocks to the
rest of the LPC2926/2927/2929. Output clocks branched from the same base clock are
phase- and frequency-related. These branch clocks can be individually controlled by
software programming.
The key features are:
Individual clock control for all LPC2926/2927/2929 sub-modules.
Activates sleeping clocks when a wake-up event is detected.
Clocks can be individually disabled by software.
Supports AHB master-disable protocol when AUTO mode is set.
Disables wake-up of enabled clocks when Power-down mode is set.
Activates wake-up of enabled clocks when a wake-up event is received.
Status register is available to indicate if an input base clock can be safely switched off
(i.e. all branch clocks are disabled).
6.16.5.1
Functional description
The PMU controls all internal clocks coming out of the CGU0 for power-mode
management. With some exceptions, each branch clock can be switched on or off
individually under control of software register bits located in its individual configuration
register. Some branch clocks controlling vital parts of the device operate in a fixed mode.
Table 32
shows which mode-control bits are supported by each branch clock.
By programming the configuration register the user can control which clocks are switched
on or off, and which clocks are switched off when entering Power-down mode.
Note that the standby-wait-for-interrupt instructions of the ARM968E-S processor (putting
the ARM CPU into a low-power state) are not supported. Instead putting the ARM CPU
into power-down should be controlled by disabling the branch clock for the CPU.
Remark:
For any disabled branch clocks to be re-activated their corresponding base
clocks must be running (controlled by CGU0).
Table 32
shows the relation between branch and base clocks, see also
Section 6.7.1
.
Every branch clock is related to one particular base clock: it is not possible to switch the
source of a branch clock in the PMU.
RGU pins
Direction
IN
Description
external reset input, Active LOW; pulled up internally
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LPC2927_10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| LPC2927FBD144 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
| LPC2927FBD144,551 | 功能描述:ARM微控制器 - MCU ARM968 512K FL/16K 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 |
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