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參數資料
| 型號： | EFM32-G840F128-SK |
| 廠商： | Energy Micro |
| 文件頁數： | 34/69頁 |
| 文件大小： | 0K |
| 描述： | IC MICRO KIT GECKO 64QFN |
| 標準包裝： | 1 |
| 系列： | Gecko |
| 套件類型： | 微控制器 |
| 值： | 2 件 - 閃存 - 128KB |
| 包裝： | 紙板盒 |
| 安裝類型： | 表面貼裝 |
| 包括封裝： | 64-QFN |
| 工具箱內容： | (2) 914-1015-1-ND - IC MCU 32BIT 128KB FLASH 64QFN |
| 其它名稱： | 914-1006 EFM32-G840-SK-F128/64/32 |
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...the world's most energy friendly microcontrollers
2013-06-28 - EFM32G840FXX - d0008_Rev1.60
4
www.energymicro.com
into two blocks; the main block and the information block. Program code is normally written to the main
block. Additionally, the information block is available for special user data and flash lock bits. There is
also a read-only page in the information block containing system and device calibration data. Read and
write operations are supported in the energy modes EM0 and EM1.
2.1.4 Direct Memory Access Controller (DMA)
The Direct Memory Access (DMA) controller performs memory operations independently of the CPU.
This has the benefit of reducing the energy consumption and the workload of the CPU, and enables
the system to stay in low energy modes when moving for instance data from the USART to RAM or
from the External Bus Interface to a PWM-generating timer. The DMA controller uses the PL230 DMA
controller licensed from ARM.
2.1.5 Reset Management Unit (RMU)
The RMU is responsible for handling the reset functionality of the EFM32G.
2.1.6 Energy Management Unit (EMU)
The Energy Management Unit (EMU) manage all the low energy modes (EM) in EFM32G microcon-
trollers. Each energy mode manages if the CPU and the various peripherals are available. The EMU
can also be used to turn off the power to unused SRAM blocks.
2.1.7 Clock Management Unit (CMU)
The Clock Management Unit (CMU) is responsible for controlling the oscillators and clocks on-board
the EFM32G. The CMU provides the capability to turn on and off the clock on an individual basis to all
peripheral modules in addition to enable/disable and configure the available oscillators. The high degree
of flexibility enables software to minimize energy consumption in any specific application by not wasting
power on peripherals and oscillators that are inactive.
2.1.8 Watchdog (WDOG)
The purpose of the watchdog timer is to generate a reset in case of a system failure, to increase appli-
cation reliability. The failure may e.g. be caused by an external event, such as an ESD pulse, or by a
software failure.
2.1.9 Peripheral Reflex System (PRS)
The Peripheral Reflex System (PRS) system is a network which lets the different peripheral module
communicate directly with each other without involving the CPU. Peripheral modules which send out
Reflex signals are called producers. The PRS routes these reflex signals to consumer peripherals which
apply actions depending on the data received. The format for the Reflex signals is not given, but edge
triggers and other functionality can be applied by the PRS.
2.1.10 Inter-Integrated Circuit Interface (I2C)
The I
2C module provides an interface between the MCU and a serial I2C-bus. It is capable of acting as
both a master and a slave, and supports multi-master buses. Both standard-mode, fast-mode and fast-
mode plus speeds are supported, allowing transmission rates all the way from 10 kbit/s up to 1 Mbit/s.
Slave arbitration and timeouts are also provided to allow implementation of an SMBus compliant system.
The interface provided to software by the I
2C module, allows both fine-grained control of the transmission
process and close to automatic transfers. Automatic recognition of slave addresses is provided in all
energy modes.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| EFM32G840F128-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 128KB FLASH 64QFN |
| EFM32G840F32 | 功能描述:ARM微控制器 - MCU 32KB FLASH 8KB RAM 32MHZ 1.8-3.8V RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數據總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數據 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 |
| EFM32G840F32-QFN64 | 制造商:Energy Micro AS 功能描述:MCU, 32K FLASH, LCD 4X24, USART+UART 3, BGA112 - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 64QFN |
| EFM32G840F32-QFN64T | 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, GECKO - Trays |
| EFM32G840F32-QFN64-T | 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 64QFN |
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