TWR-WIFI-RS2101 Datasheet TWR-WIFI-RS2101 | P4-P6

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 TWR‐WIFI‐RS2101User’sManual Page4of9

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2 ReferenceDocuments

ThedocumentslistedbelowshouldbereferencedformoreinformationontheFreescaleTower

systemandtheTWR‐WIFI‐RS2101.Refertohttp://www.freesale.com/towerforthelatestrevisionof

allTowerdocumentation.

• TWR‐WIFI‐RS2101UserManual

• TWR‐WIFI‐RS2101QuickStartGuide

• TWR‐WIFI‐RS2101LabTutorial

• RS9110‐N‐11‐21ProductBrief

• RS9110‐N‐11‐21Wi‐FiModuleAbridgedDatasheet

3 HardwareFeatures

ThissectionprovidesmoredetailsaboutthefeaturesandfunctionalityoftheTWR‐WIFI‐RS2101.

3.1 RS9110N1121Module

TheRS9110‐N‐11‐21modulefromRedpine'sConnect‐io‐n™familyofproductsisacompleteIEEE

802.11bgnWi‐FiclientdevicewithastandardserialorSPIinterfacetoahostprocessorordatasource.

ItintegratesaMAC,Basebandprocessor,RFtransceiverwithpoweramplifier,afrequencyreference,

anantenna,andallWLANprotocolandconfigurationfunctionalityinembeddedfirmwaretoprovidea

self‐contained802.11nWLANsolutionforavarietyofapplications.NoWLANdriverfunctionalityis

requiredonthehostprocessor.BasedontheRedpineSignalsRS9110SoCwhichincludesanembedded

processor,itisdesignedtoprovidestandardscompliantwirelessconnectivitytodevicesandsystems

thathaveaserialportandimplementaTCP/IPstack.Asawirelessserialmodem,theRS9110‐N‐11‐21

handlesSLIPpacketsandacceptsATcommandsforconfiguration, enablingavarietyofM2M

applicationsatlowcostandsmallfootprint.Ituniquelyprovidesconnectivityinthesinglestream

802.11nmode,preservingoverallnetworkthroughputintheemergingenterpriseenvironments.

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FortheTWR‐WIFI‐RS2101TowerPeripheralModule,theRS9110‐N‐11‐21modulecommunicateswith

theMCUthroughanSPI.

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Figure2showsafunctionalblockdiagramoftheRS9110‐

N‐11‐21module.RefertotheRS9110‐N‐11‐

21Wi‐FiModuleAbridgedDatasheetformoreinformation.

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 TWR‐WIFI‐RS2101User’sManual Page5of9

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RS9110-N-11-21-01

RS9110 WLAN Subsystem

RS9110

Transceiver

Flash

3.3V

Supply

Reset

LED

Re se t

BT Coexistence I/f

Test Port

Freescale MCU

Applications

MQX OS/TCP IP

SLIP

WLAN Stack

SPI/UART

Selection

GPI O

SPI

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Figure2. RS9110‐N‐11‐21Module:FunctionalBlockDiagram

3.2 SystemPower

TheRS9110‐N‐11‐21ispoweredfromasourceinanassembledTowerSystemviathe3.3Vsupplyon

thePrimaryElevatorConnector.

3.3 AccessHeader

TheSPIandinterruptsignalsareroutedtoboththePrimaryElevatorconnectoranda2x5pinheader.

ThisAccessHeadercanbeusedtoaccesstheRS9110‐N‐11‐21modulesignalsforprobingorforuse

outsideoftheTowerSystem.ThepinoutisshowninTable1.

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Table1. AccessHeaderConnections

RS9110‐N‐11‐21

Signal Pin

RS9110‐N‐11‐21

Signal

3.3V 1 2 GND

SPI_CLK 3 4 SPI_INTR

NoConnect 5 6 NoConnect

SPI_DATAOUT 7 8 SPI_CS

SPI_DATAIN 9 10 GND

3.4 ElevatorConnections

TheTWR‐WIFI‐RS2101featurestwoexpansioncard‐edgeconnectorsthatinterfacetoElevatorboards

inaTowersystem:thePrimaryandSecondaryElevatorconnectors.ThePrimaryElevatorconnector,

comprisedofsidesAandB,isutilizedbytheTWR‐WIFI‐RS2101,whiletheSecondaryElevator

connectoronlymakesconnectionstoground(GND).Table2providesthepinoutforthePrimary

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 TWR‐WIFI‐RS2101User’sManual Page6of9

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ElevatorConnector.An“X”inthe“Used”columnindicatesthatthereisaconnectionfromtheTWR‐

WIFI‐RS2101tothatpinontheElevatorconnector.An“X”inthe“Jmp”columnindicatesthata

jumperisavailablethatcanconfigureorisolatetheconnectionfromtheElevatorconnector.

Table

2. TWR‐WIFI‐RS2101PrimaryElevatorConnectorPinout

TWR‐WIFI‐RS2101PrimaryConnector

SideB SideA

Pin

# Name Usage Used Jmp

Pin

# Name Usage Used Jmp

B1 5V    A1 5V 

B2 GND GroundA2 GND Ground

B3 3.3V 3.3VPower A3 3.3V 3.3VPower

B4 ELE_PS_SENSE A4 3.3V 3.3VPower

B5 GND GroundA5 GND Ground

B6 GND GroundA6 GND Ground

B7

SPI1_CLK/SDHC1_CLK



A7

SCL0



B8

SPI1_CS1/SDHC1_CS1



A8

SDA0



B9

SPI1_CS0/SDHC1_CS0



A9 GPIO9/CTS1

POWER_EN



B10

SPI1_MOSI/SDHC1_CMD



A10 GPIO8/SDHC_D2



B11

SPI1_MISO/SDHC1_D0



A11 GPIO7/SD_WP_DET



MechanicalKey

B12

ETH_COL



A12

ETH_CRS



B13

ETH_RXER



A13

ETH_MDC



B14

ETH_TXCLK



A14

ETH_MDIO



B15

ETH_TXEN



A15

ETH_RXCLK



B16

ETH_TXER



A16

ETH_RXDV



B17

ETH_TXD3



A17

ETH_RXD3



B18

ETH_TXD2



A18

ETH_RXD2



B19

ETH_TXD1



A19

ETH_RXD1



B20

ETH_TXD0



A20

ETH_RXD0



B21 GPIO1 GPIO_RST X



A21

SSI_MCLK

  

B22 GPIO2   A22

SSI_BCLK

  

B23 GPIO3   A23

SSI_FS

  

B24 CLKIN0 



A24

SSI_RXD

  

B25 CLKOUT1   A25

SSI_TXD

  

B26 GND GroundA26 GND Ground

B27

AN7





A27

AN3





B28

AN6





A28

AN2





B29

AN5





A29

AN1





B30

AN4





A30

AN0





B31 GND GroundA31 GND Ground

B32

DAC1





A32

DAC0





B33

TMR3





A33

TMR1





B34

TMR2





A34

TMR0





B35 GPIO4 



A35 GPIO6  

B36 3.3V 3.3VPower A36 3.3V 3.3VPower

P1-P3 P4-P6 P7-P9

TWR-WIFI-RS2101

Mfr. #:

Buy TWR-WIFI-RS2101

Manufacturer:

NXP / Freescale

Description:

WiFi Development Tools (802.11) Tower WIFI Module

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

TWR-WIFI-RS2101