- 您现在的位置：买卖IC网 > PDF目录18713 > DR-TRC103-915-EV (RFM)BOARD EVALUATION 915MHZ RFM RFIC PDF资料下载
参数资料
| 型号： | DR-TRC103-915-EV |
| 厂商： | RFM |
| 文件页数： | 26/65页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION 915MHZ RFM RFIC |
| 标准包装： | 1 |
| 类型： | 收发器，SRR |
| 频率： | 902MHz ~ 928MHz |
| 适用于相关产品： | TRC103-915 |
| 已供物品： | 2 个板，天线，电池 |
第1页第2页第3页第4页第5页第6页第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页当前第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页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页
A byte transmission can be seen as a rotate operation between the value stored in an 8-bit shift register in the
master device (host microcontroller) and the value stored in an 8-bit shift register in the transceiver. The SCK line
is used to synchronize both SPI bit transfers. Data is transferred full-duplex from master to slave through the SDI
line and from slave to master through the SDO line. The most significant bit is always sent first. In both directions
the rising SCK edge is used to sample a bit, and the falling SCK edge shifts the bits through the shift register.
The active low nSS_CONFIG or nSS_DATA signals are asserted by the master device and should remain low
during a byte transmission. The transmission is synchronized by these nSS_CONFIG or nSS_DATA signals.
While the nSS_CONFIG or nSS_DATA is set to 1, the counters controlling transmission are reset. Reception
starts with the first clock cycle after the falling edge of nSS_CONFIG or nSS_DATA. If either signal goes high dur-
ing a byte transmission the counters are reset and the byte must be retransmitted.
The configuration interface is selected if nSS_CONFIG is low even if the TRC103 is in buffered mode and
nSS_DATA is low (nSS_CONFIG has priority). To configure the transceiver two bytes are required. The first byte
contains a 0 start bit, R/W information (1 = read, 0 = write), 5 bits for the address of the register and a 0 stop bit.
The second byte contains the data to be sent in write mode or the new address to read from in read mode.
S in g le B y te C o n fig u r a tio n R e g is te r W r ite
n S S _ C O N F IG
S C K
S D I
X
S T A R T
R /W
A 4
A 3
A 2
A 1
A 0
S T O P
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
X
R e g is te r A d d r e s s
N e w
R e g is te r V a lu e
S D O
H i-Z
X
X
X
X
X
X
X
X
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
H i-Z
O ld R e g is te r V a lu e
Figure 20
Figure 20 shows the timing diagram for a single byte write sequence to the TRC103 through the SPI configuration
interface. Note that nSS_CONFIG must remain low during the transmission of the two bytes (address and data). If
it goes high after the first byte, then the next byte will be considered as an address byte. When writing more than
one register successively, nSS_CONFIG does not need to have a high-to-low transition between two write se-
quences. The bytes are alternatively considered as an address byte followed by a data byte.
The read sequence through the SPI configuration interface is similar to the write sequence. The host microcon-
troller sends the address during the first SPI communication and then reads the data during a second SPI com-
munication. Note that 0 bits can be input to the SDI during the second SPI communication for a single byte read.
Figure 21 shows the timing diagram for a single byte read sequence from the TRC103 through the SPI.
S in g le B y te C o n fig u r a tio n R e g is te r R e a d
n S S _ C O N F IG
S C K
S D I
X
S T A R T
R /W
A 4
A 3
A 2
A 1
A 0
X
R e g is te r A d d r e s s
S D O
H i-Z
X
X
X
X
X
X
X
X
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
H i-Z
R e g is te r V a lu e
Figure 21
www.RFM.com E-mail: info@rfm.com
? 2009-2010 by RF Monolithics, Inc.
Technical support +1.800.704.6079
Page 26 of 65
TRC103 - 11/29/12
相关PDF资料 |
PDF描述 |
|---|---|
| DR-TRC103-868-EV | BOARD EVALUATION 868MHZ RFM RFIC |
| TC70N6C32K7680 | OSCILLATOR 32.7680 KHZ 2.5V SMD |
| TC70N3A32K7680 | OSCILLATOR 32.7680 KHZ 2.5V SMD |
| TC70L3C32K7680 | OSCILLATOR 32.7680 KHZ 3.3V SMD |
| EK64905-01 | KIT EVAL FOR 64904 NO CABLES |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DR-TRC103-950-DK | 功能描述:KIT DEV 950MHZ RFIC SRR RoHS:否 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 |
| DR-TRC103-950-EV | 功能描述:BOARD EVALUATION 950MHZ RFM RFIC RoHS:否 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 |
| DR-TRC104-2400-DK | 功能描述:射频开发工具 TRC104 Development Kit 2.4 GHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| DR-TRC104-2400-EV | 制造商:RFM 功能描述:BOARD EVALUATION 2.4GHZ RFM RFIC |
| DR-TRC105-304-DK | 功能描述:射频开发工具 TRC105 Development Kit 303-307 MHz RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
发布紧急采购，3分钟左右您将得到回复。