参数资料
型号: XE8000EV108
厂商: Semtech
文件页数: 7/143页
文件大小: 0K
描述: EVAL BOARD FOR XE8806/XE8807
标准包装: 1
类型: MCU
适用于相关产品: XE88LC06AMI026
所含物品: 完全组装的评估板
产品目录页面: 585 (CN2011-ZH PDF)
Semtech 2006
www.semtech.com
14-24
XE8806A/XE8807A
Pattern1
01000
0
Pattern2
01001
0
Pattern3
01010
0
Pattern4
01011
0
Table 14-29. XE1202A register set-up (see XE1202A datasheet for bit explanation)
14.12.2.4.2
RF interface set-up
We then set-up the RF interface of the microcontroller circuit as a receiver (RfifEnRx = 1 and RfifEnTx = 0).
Assume that the RC clock frequency used in the microcontroller is 1.0 MHz. To select the correct baud rate of 4.8
kbit/s according to the equation in chapter 14.10 (attention: the baud rate is twice the bit rate in the Manchester
code), fine*coarse=1.0e06/(16*4.8e3)=13.0. This can be done by setting RfifBRCoarse = 00 and RfifBRFine =
1100.
The external bit synchronization clock is switched off by clearing the bit RfifRxClock = 0.
The decoder is enabled and set to Manchester Level decoding by setting RfifEnCod = 1 and RfifPCM = 011.
The start detection by protocol violation is enabled by setting RfifEnStart = 01.
The start sequence detection interrupt is enabled by setting RfifRxIrqEn = 001.
The set-up of the interface is summarized in the Table 14-30.
Register
contents
RegRfifCmd1
00000010
RegRfifCmd2
10100100
RegRfifCmd3
00100010
Table 14-30. RF interface set-up
14.12.2.4.3
Data reception
In order to handle the received data by interrupt, enable the RF interface reception interrupt in the interrupt handler
of the circuit.
Data received before the first start pattern detection after the enabling of the interface are not relevant since we are
not yet synchronized to the messages. Sine the start detection interrupt has been enabled, nothing has to be done
until the interrupt occurs.
When the first interrupt occurs, we are synchronized to the messages. In order to read data in an efficient way, the
interrupt source is modified and set to “Rx FIFO full” by writing 100 to RfifRxIrqEn. Once this is done, we can wait
for the next interrupt to download the received message.
At each new interrupt, we can now read 4 bytes of the received message by reading the register RegRfifRx 4
consecutive times. The interrupt should be served before the next byte is received since otherwise data may be
lost by lack of space in the FIFO (overrun error which sets the flag RfifRxFifoOverrun) or because the start
sequence of the next message is detected which resets the reception FIFO.
When the complete message is received, the start sequence detection interrupt may be enabled again
(RfifRxIrqEn = 001) and the sequence starts all over again.
相关PDF资料
PDF描述
94SVP476X0020E7 CAP ALUM 47UF 20V 20% SMD
EBC22DRTI-S13 CONN EDGECARD 44POS .100 EXTEND
AT-S-26-8/8/B-14-R MOD CORD STANDARD 8-8 BLACK 14'
LGU2E221MELZ CAP ALUM 220UF 250V 20% SNAP
VE-BT1-EY CONVERTER MOD DC/DC 12V 50W
相关代理商/技术参数
参数描述
XE8000EV110 功能描述:EVAL BOARD FOR XE8802AMI035LF RoHS:否 类别:编程器,开发系统 >> 通用嵌入式开发板和套件(MCU、DSP、FPGA、CPLD等) 系列:- 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板,软件,4x4 键盘,光学拨轮,QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA
XE8000EV120 功能描述:BOARD EVAL FOR SX8722I070TRLF RoHS:是 类别:编程器,开发系统 >> 评估板 - 模数转换器 (ADC) 系列:ZoomingADC™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率(每秒):94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源(标准):- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板,软件
XE8000EV121 功能描述:BOARD EVAL FOR SX8723/24 RoHS:是 类别:编程器,开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理,电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板
XE8000MP 功能描述:PROG BOARD AND PROSTART2 CARD RoHS:否 类别:编程器,开发系统 >> 独立编程器 系列:- 产品目录绘图:CHIPPROG-G4 标准包装:1 系列:- 类型:成组编程器 适用于相关产品:EEPROM,EPROM,FLASH,MCU,NVRAM,PLD 所含物品:编程器,线缆,CD 产品目录页面:598 (CN2011-ZH PDF) 相关产品:AE-TS56-16I-3-ND - ISP CABLEADAPTER 14-PIN HEADERAE-TS40N-ND - ADAPTER SOCKET 40-TSOP TO 40-DIPAE-TS32N-ND - ADAPTER SOCKET 32-TSOP TO 32-DIPAE-TS28-ND - ADAPTER SOCKET 28-TSOP TO 28-DIPAE-T44-P16-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-T44-I51/505-ND - ADAPTER SOCKET 44-QFP TO 40-DIPAE-SS56-16I-ND - ADAPTER SOCKET 56-SSOP TO 40-DIPAE-SP8U-ND - ADAPTER SOCKET 8-SSOP TO 8-DIPAE-SP28U2-ND - ADAPTER SOCKET 28-SSOP TO 28-DIPAE-SP28U1-ND - ADAPTER SOCKET 28-SSOP TO 28-DIP更多...
XE8801A 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Data Acquisition with ZoomingADC?