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参数资料
| 型号： | EM260-RTY |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 22/50页 |
| 文件大小： | 0K |
| 描述： | IC ZIGBEE SYSTEM-ON-CHIP 40-QFN |
| 标准包装： | 429 |
| 频率： | 2.4GHz |
| 数据传输率 - 最大： | 250kbps |
| 调制或协议： | 802.15.4 |
| 应用： | ZigBee? |
| 功率 - 输出： | -32dBm ~ 3dBm |
| 灵敏度： | -97dBm |
| 电源电压： | 2.1 V ~ 3.6 V |
| 电流 - 接收： | 30mA |
| 电流 - 传输： | 34mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 包装： | 托盘 |
| 其它名称： | 636-1003 |
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EM260
5 SPI Protocol
The EM260 Low Level Protocol centers on the SPI interface for communication with a pair of GPIO for
handshake signaling.
The EM260 looks like a hardware peripheral.
The EM260 is the slave device and all transactions are initiated by the Host (the master).
The EM260 supports a reasonably high data rate.
5.1
Physical Interface Configuration
The EM260 supports both SPI Slave Mode 0 (clock is idle low, sample on rising edge) and SPI Slave Mode 3
(clock is idle high, sample on rising edge) at a maximum SPI clock rate of 5MHz, as illustrated in Figure 4. The
convention for the waveforms in this document is to show Mode 0.
Clock, Mode 0 (SCLK)
Clock, Mode 3 (SCLK)
Host – Master (MOSI)
EM260 – Slave (MISO)
MSB
MSB
LSB
LSB
Figure 4. SPI Transfer Format, Mode 0 and Mode 3
The nHOST_INT signal and the nWAKE signal are both active low. The Host must supply a pull-up resistor on
the nHOST_INT signal to prevent errant interruptions during undefined events such as the EM260 resetting.
The EM260 supplies an internal pull-up on the nWAKE signal to prevent errant interruptions during undefined
events such as the Host resetting.
5.2
SPI Transaction
The basic EM260 SPI transaction is half-duplex to ensure proper framing and to give the EM260 adequate
response time. The basic transaction, as shown in Figure 5, is composed of three sections: Command, Wait,
and Response. The transaction can be considered analogous to a function call. The Command section is the
function call, and the Response section is the return value.
nHOST_INT
nSSEL
MOSI
MISO
SCLK
Command
Wait
Response
Figure 5. General Timing Diagram for a SPI Transaction
120-0260-000M Rev 1.1
Page 22
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EM260-USART-JMP-R | 功能描述:KIT JUMP START FOR EM260 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 |
| EM2630-12# | 制造商:Fluke Electronics 功能描述:BNC (F) TO ALLIGATOR CLIPS 12 INCHES 制造商:Pomona Electronics 功能描述: |
| EM-26392-C36 | 功能描述:麦克风 3.61 X 3.61 X 2.21MM -51 SENS, 12SL PORT RoHS:否 制造商:Knowles Acoustics 方向性:Omnidirectional 阻抗:4.4 K Ohms 工作电压:0.9 V to 10 V 灵敏度:- 53 dB 端接类型:Wire Leads 长度:5.56 mm 宽度:3.98 mm 深度:2.21 mm |
| EM-26596-C36 | 功能描述:麦克风 3.61 X 3.61 X 2.21MM -52 SENS, 12B PORT RoHS:否 制造商:Knowles Acoustics 方向性:Omnidirectional 阻抗:4.4 K Ohms 工作电压:0.9 V to 10 V 灵敏度:- 53 dB 端接类型:Wire Leads 长度:5.56 mm 宽度:3.98 mm 深度:2.21 mm |
| EM-26596-D58 | 功能描述:麦克风 3.61 X 3.61 X 2.21MM -52 SENS, 12B PORT RoHS:否 制造商:Knowles Acoustics 方向性:Omnidirectional 阻抗:4.4 K Ohms 工作电压:0.9 V to 10 V 灵敏度:- 53 dB 端接类型:Wire Leads 长度:5.56 mm 宽度:3.98 mm 深度:2.21 mm |
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