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参数资料
型号： XE8806AMI026TLF
厂商： Semtech
文件页数： 70/143页
文件大小： 0K
描述： IC MCU LOW PWR MTP FLASH 32-TQFP
标准包装： 1
系列： XE880x
应用： 感测机
核心处理器： Coolrisc816?
程序存储器类型： 闪存（22 kB）
控制器系列： XE8000
RAM 容量： 512 x 8
接口： UART，USRT
输入/输出数： 24
电源电压： 2.4 V ~ 5.5 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 32-TQFP
包装： 剪切带 (CT)
供应商设备封装： 32-TQFP（7x7）
配用： XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
其它名称： XE8806AMI026CT
Semtech 2006
www.semtech.com
5-2
XE8806A/XE8807A
5.1
Features
5.1.1
Overview
The XE8000 chips have three operating modes. These are the normal, low current and very low current modes
(see Figure 5-1). The different modes are controlled by the reset and clock blocks (see the documentation of the
respective blocks).
5.2
Operating mode
Start-up
All bits are reset in the design when a POR or padnreset is active.
RC is enabled, Xtal is disabled and CPU is reset (pmaddr = 0000).
If the port A is used to return from the sleep mode, all bits with nresetcold do not change (see sleep mode)
Start-up
All bits with nresetglobal and nresetpconf(if enabled) are reset. Clock configuration doesn’t change except cpuck
(freqdiv is reset, see clock block). CPU is reset
Active mode
This is the mode where the CPU and all peripherals can work and execute the embedded software.
Standby mode
Executing a HALT instruction moves the XE8000 into the Standby mode. The CPU is stopped, but the clocks
remain active. Therefore, the enabled peripherals remain active e.g. for time keeping. A reset or an interrupt/event
request (if enabled) cancels the standby mode.
Sleep mode
This is a very low-power mode because all circuit clocks and all peripherals are stopped. Only some service blocks
remain active. No time-keeping is possible. Two instructions are necessary to move into sleep mode. First, the
SleepEn (sleep enable) bit in RegSysCtrl has to be set to 1. The sleep mode can then be activated by setting the
Sleep bit in RegSysReset to 1.
There are three possibe ways to wake-up from the sleep mode:
1.
The POR (power-on-reset caused by a power-down followed by power-on). The RAM information is
lost.
2.
The padnreset
3.
The Port A reset combination (if the Port A is present in the product). See Port A documentation for
more details.
Note:
If the Port A is used to return from the sleep mode, all bits with nresetcold do not change (RegSysCtrl,
RegSysReset (except bit sleep), Enextclock and Biasrc in RegSysClock, RegSysRcTrim1 and
RegSysRcTrim2). The SleepFlag bit in RegSysReset, reads back a 1 if the circuit was in sleep mode
since the flag was last cleared (see reset block for more details).
Note:
It is recommended to insert a NOP instruction after the instruction that sets the circuit in sleep mode
because this instruction can be executed when the sleep mode is left using the resetfromportA.
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相关代理商/技术参数
参数描述
XE8806ARI000 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806ARI026LF 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI000 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI026LF 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI026TLF 功能描述:IC MCU LOW PWR MTP FLASH 32-TQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器 - 特定应用 系列:XE880x 产品变化通告:Product Discontinuation 26/Aug/2009 标准包装:250 系列:- 应用:网络处理器 核心处理器:4Kc 程序存储器类型:- 控制器系列:- RAM 容量:16K x 8 接口:以太网，UART，USB 输入/输出数:- 电源电压:1.8V, 3.3V 工作温度:- 安装类型:表面贴装 封装/外壳:208-LQFP 包装:带卷 (TR) 供应商设备封装:PG-LQFP-208 其它名称:SP000314382
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