- 您现在的位置：买卖IC网 > PDF目录16483 > OM13006,598 (NXP Semiconductors)BOARD EVAL EM773 METER EU PLUG PDF资料下载
参数资料
| 型号： | OM13006,598 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/51页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL EM773 METER EU PLUG |
| 其它有关文件： | EM773 Energy Metering IC Training |
| 设计资源： | Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是，MCU，32 位 |
| 已用 IC / 零件： | EM773FHN33，551 |
| 已供物品： | 板 |
| 相关产品： | 568-5213-ND - IC ENERGY METER ARM 32VQFN |
| 其它名称： | 568-6681 |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页
EM773
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 3 January 2012
15 of 51
NXP Semiconductors
EM773
Energy metering IC
7.15 Clocking and power control
7.15.1 Crystal oscillators
The EM773 includes three independent oscillators. These are the system oscillator, the
Internal RC oscillator (IRC), and the Watchdog oscillator. Each oscillator can be used for
more than one purpose as required in a particular application.
Following reset, the EM773 will operate from the Internal RC oscillator until switched by
software. This allows systems to operate without any external crystal and the bootloader
code to operate at a known frequency.
See Figure 4 for an overview of the EM773 clock generation.
7.15.1.1
Internal RC oscillator
The IRC may be used as the clock source for the WDT, and/or as the clock that drives the
PLL and subsequently the CPU. The nominal IRC frequency is 12 MHz. The IRC is
trimmed to 1 % accuracy over the entire voltage and temperature range.
Upon power-up or any chip reset, the EM773 uses the IRC as the clock source. Software
may later switch to one of the other available clock sources.
Fig 4.
EM773 clock generation block diagram
SYSTEM PLL
IRC oscillator
system oscillator
watchdog oscillator
IRC oscillator
watchdog oscillator
MAINCLKSEL
(main clock select)
SYSPLLCLKSEL
(system PLL clock select)
SYSTEM CLOCK
DIVIDER
AHB clock 0
(system)
SYSAHBCLKCTRL[1:18]
(AHB clock enable)
AHB clocks 1 to 18
(memories
and peripherals)
SPI0 PERIPHERAL
CLOCK DIVIDER
SPI0
UART PERIPHERAL
CLOCK DIVIDER
UART
WDT CLOCK
DIVIDER
WDT
WDTUEN
(WDT clock update enable)
watchdog oscillator
IRC oscillator
system oscillator
CLKOUT PIN CLOCK
DIVIDER
CLKOUT pin
CLKOUTUEN
(CLKOUT update enable)
002aag729
main clock
system clock
IRC oscillator
18
相关PDF资料 |
PDF描述 |
|---|---|
| CM252016-680KL | INDUCTOR CHIP 68UH 2520 SMD |
| ECM25DRXN | CONN EDGECARD 50POS DIP .156 SLD |
| VI-J4P-EX | CONVERTER MOD DC/DC 13.8V 75W |
| SI5319-EVB | BOARD EVALUATION SI5319 |
| EMM11DSEN-S243 | CONN EDGECARD 22POS .156 EYELET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| OM13007 | 制造商:NXP Semiconductors 功能描述:KIT DEV FOR MPT612 制造商:NXP Semiconductors 功能描述:DEV KIT, FOR MPT612 制造商:NXP Semiconductors 功能描述:DEV KIT, FOR MPT612; SVHC:No SVHC (19-Dec-2012); Kit Features:Low Power High Performance, High Value, LPC1102, with 32KB Of Flash, 8KB of RAM; MCU Supported Families:MPT612 |
| OM13007,598 | 功能描述:开发板和工具包 - ARM MPT612 IC REFERENCE BOARD RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| OM13008 | 制造商:NXP Semiconductors 功能描述:LPC1227, LPCXPRESSO, DEV BOARD 制造商:NXP Semiconductors 功能描述:LPCXpresso Board for LPC1200 Series Development Board 制造商:NXP Semiconductors 功能描述:LPCXpresso Board for LPC1200 Low-Cost Development Board ARM Cortex-M0 MCU 制造商:NXP Semiconductors 功能描述:LPC1227, LPCXPRESSO, DEV BOARD; Silicon Manufacturer:NXP; Core Architecture:ARM; Core Sub-Architecture:Cortex-M0; Silicon Core Number:LPC12xx; Silicon Family Name:LPC122X; Features:Development Board for LPC122X Microcontroller; ;RoHS Compliant: Yes 制造商:NXP 功能描述:LPCXpresso Board for LPC1200 Low-Cost Development Board ARM Cortex-M0 MCU |
| OM13008, 598 | 制造商:NXP Semiconductors 功能描述: |
| OM13008,598 | 功能描述:开发板和工具包 - ARM LPCXpresso Board RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
发布紧急采购，3分钟左右您将得到回复。