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参数资料
| 型号： | EM260-RTY |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 25/50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
unsupported by the current Mode the EM260 is in. Bootloader Frames can only be used with the bootloader
and EZSP Frames can only be used with the EZSP.
Oversized Payload Frame: If the transaction includes a Payload Frame, the Length Byte cannot be a value
greater than 133. If the EM260 detects a length byte greater than 133, it will drop the incoming Command
and abort the entire transaction. The EM260 will then assert nHOST_INT after Slave Select returns to Idle
to inform the Host through an error code in the Response section what has happened. Not only is the
Command in the problematic transaction dropped by the EM260, but the next Command is also dropped,
because it is responded to with the Oversized Payload Frame Error Response.
Aborted Transaction: An aborted transaction is any transaction where Slave Select returns to Idle
prematurely and the SPI Protocol dropped the transaction. The most common reason for Slave Select
returning to Idle prematurely is the Host unexpectedly resetting. If a transaction is aborted, the EM260 will
assert nHOST_INT to inform the Host through an error code in the Response section what has happened.
When a transaction is aborted, not only does the Command in the problematic transaction get dropped by
the EM260, but the next Command also gets dropped since it is responded to with the Aborted Transaction
Error Response.
Missing Frame Terminator: Every Command and Response must be terminated with the Frame Terminator
byte. The EM260 will drop any Command that is missing the Frame Terminator. The EM260 will then
immediately provide the Missing Frame Terminator Error Response.
Long Transaction: A Long Transaction error occurs when the Host clocks too many bytes. As long as the inter-
command spacing requirement is met, this error condition should not cause a problem, since the EM260
will send only 0xFF outside of the Response section as well as ignore incoming bytes outside of the
Command section.
Unresponsive: Unresponsive can mean the EM260 is not powered, not fully booted yet, incorrectly connected
to the Host, or busy performing other tasks. The Host must wait the maximum length of the Wait section
before it can consider the EM260 unresponsive to the Command section. This maximum length is 300
milliseconds, measured from the end of the last byte sent in the Command Section. If the EM260 ever fails
to respond during the Wait section, it is valid for the Host to consider the EM260 unresponsive and to reset
the EM260. Additionally, if nHOST_INT does not assert within 300ms of nWAKE asserting during the wake
handshake, the Host can consider the EM260 unresponsive and reset the EM260.
5.3
SPI Protocol Timing
Figure 7 illustrates all critical timing parameters in the SPI Protocol. These timing parameters are a result of
the EM260’s internal operation and both constrain Host behavior and characterize EM260 operation. The
parameters shown are discussed elsewhere in this document. Note that Figure 7 is not drawn to scale, but is
instead drawn only to illustrate where the parameters are measured.
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
nRESET
nWAKE
nHOST_INT
nSSEL
MOSI
MISO
SCLK
<data>
<data>
Wake
Reset
Command
Wait
Response
Figure 7. SPI Protocol Timing Waveform
Page 25
120-0260-000M Rev 1.1
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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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