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EM250
The data side of the address space contains mappings to the same Flash and RAM blocks, as well as registers
and a separate Flash information area, as shown in Figure 4.
Physical Flash
0x1FFFF
7
0x1C000
0x1BFFF
6
0x18000
0x17FFF
Data Address Space
(Note: Addresses are in Bytes)
0x7FFF
RAM
0x6C00
0x6BFF
Unimplemented
Other Physical Memories
5 kB SRAM
0x14000
5
0x5400
0x53FF
0x5000
Info Page
1 kB Flash Info
Page
0x13FFF
0x4FFF
128 kB Flash
Divided in 16 kB
Windows
4
Registers
(word access only)
0x4000
0x3FFF
Register Block
3
0x0C000
0x0BFFF
2
0x08000
0x07FFF
0x04000
0x03FFF
0x00000
1
Window 0
Configurable
Flash Window
0x0000
Figure 4. Data Address Space
4.6.1
Flash Memory
The EM250 integrates 128kB of Flash memory. The Flash cell has been qualified for a data retention time of
>100 years at room temperature. Each Flash page size is 1024 bytes and is rated to have a guaranteed 1,000
write/erase cycles.
The Flash memory has mappings to both the program and data side address spaces. On the program side, the
first 112kB of the Flash memory are mapped to the corresponding first 56k word addresses to allow for code
storage, as shown in Figure 3.
On the program side, the Flash is always read as whole words. On the data side, the Flash memory is divided
into eight 16kB sections, which can be separately mapped into a Flash window for the storage of constant data
and the Simulated EEPROM. As shown in Figure 4, the Flash window corresponds to the first 16kB of the data-
side address space. On the data side, the Flash may be read as bytes, but can only be written to one word at a
time using utility routines in the EmberZNet PRO stack and HAL.
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相关代理商/技术参数
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制造商:Silicon Laboratories Inc 功能描述:COMPILER XIDE FOR EM250 1SEAT
EM250-DEV
功能描述:KIT DEV FOR EM250 RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:InSight 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
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EM250-JMP-R
功能描述:KIT JUMP START FOR EM250 RoHS:否 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:JumpStart 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
EM250-RCM-R
功能描述:EM250 RCM BOARD RoHS:是 类别:RF/IF 和 RFID >> RF 评估和开发套件，板 系列:- 标准包装:1 系列:- 类型:GPS 接收器 频率:1575MHz 适用于相关产品:- 已供物品:模块 其它名称:SER3796
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功能描述:IC ZIGBEE SYSTEM-ON-CHIP 48-QFN RoHS:是 类别:RF/IF 和 RFID >> RF 收发器 系列:EM250 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件
EM250-STACK-R
制造商:Silicon Laboratories Inc 功能描述:EM250 BOARD STACK (RCM + BREAKOUT) - Boxed Product (Development Kits) 制造商:Silicon Laboratories Inc 功能描述:BOARD STACK EM250 RCM & BREAKOUT
EM25-12V-DC
制造商:ECLIPSE MAGNETICS 功能描述:HOLDING ELECTRO MAGNET