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DWM ADD-ON/DWM Hardware/pdf

< DWM ADD-ON‎ | DWM Hardware
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General InformationEdit

DWM TOP ViewEdit

 
DWM TOP View

DWM BOTTOM ViewEdit

 
DWM BOTTOM View


IntroductionEdit

The module is built around an LS Research TiWi-BLE Integrated Transceiver Modules for WLAN 802.11 b/g/n and Bluetooth. The module implements the necessary PHY/MAC layers to support WLAN applications in conjunction with a host processor over a SDIO interface. The module also provides a Bluetooth platform through the HCI transport layer. Both WLAN and Bluetooth share the same antenna port.

FeaturesEdit

  • Based on Texas Instruments WL1271L Transceiver
  • IEEE 802.11 b,g,n,d,e,i, compliant
  • Bluetooth 2.1+EDR, Power Class 1.5
  • Full support for BT4.0 BLE and ANT
  • Reduced footprint: 25 mm x 38 mm
  • Low height profile
  • U.FL connector for external antenna
  • Integrated band-pass filter
  • Industrial operating temperature range: -40 / +85 °C

Interface timingsEdit

Please refer to the TiWi-BLE Datasheet for SDIO [WiFi] and UART [Bluetooth] interface timings.


Hardware versioning and trackingEdit

DWM ADD-ON implements well established versioning and tracking mechanisms:

  • PCB version is copper printed on PCB itself, as shown in Fig. 1
  • serial number: it is printed on a white label, as shown in Fig. 2: see also Product serial number page for more details


 
Fig.1 PCB version


 
Fig.2 Serial number



Part number compositionEdit

DWM ADD-ON part number is identified by the following digit-code table:

Part number structure Options Description
DWM Prefix
RFU
  • 0001
 Reserved for future use
Temperature range
  • I - Industrial grade: -40 to 85°C
 For the DAVE Embedded Systems' product Temperature Range classification, please find more information at the page Products Classification
PCB revision
  • 2: Mass production release
 PCB release may change for manufacturing purposes (i.e. text fixture adaptation)
Manufacturing option
  • R: RoHS compliant
 typically connected to production process and quality

ExampleEdit

DWM ADD-ON code DWM0001I2R

  • DWM - DWM ADD-ON
  • 0001 - standard version
  • I - Industrial grade

Pinout TableEdit

Connectors and Pinout TableEdit

Connectors descriptionEdit

In the following table are described all available connectors integrated on DWM_ADD-ON:

Connector name Connector Type Notes Carrier board counterpart
J1 Dual in line low profile high density connector 30pins Molex 501920-3001 Molex 52991-030, others are available with different stand-off
Antenna's connector UFL type N.A. UFL cable side (many versions available in the marked already inserted on cables/antenna patches)

The dedicated carrier board must mount the mating connector and connect the desired peripheral interfaces according to DWM pinout specifications. See the images below for reference:

 
DWM TOP view with antenna's connector
 
DWM BOTTOM view with main connector


Pinout table naming conventionsEdit

This chapter contains the pinout description of the DWM module, grouped in two tables (odd and even pins) that report the pin mapping of the TBD: connector type DWM connector.

Each row in the pinout tables contains the following information:

Pin Reference to the connector pin
Pin Name Pin (signal) name on the DWM connectors
Internal
connections 		Connections to the DWM components
  • CPU.<x> : pin connected to CPU pad named <x>
  • CAN.<x> : pin connected to the CAN transceiver (manufacturer part number)
  • PMIC.<x> : pin connected to the Power Manager IC (manufacturer part number)
  • LAN.<x> : pin connected to the LAN PHY (manufacturer part number)
  • NOR.<x>: pin connected to the flash NOR
  • SV.<x>: pin connected to voltage supervisor
  • MTR: pin connected to voltage monitors
Ball/pin # Component ball/pin number connected to signal
Voltage I/O voltage levels
Type Pin type:
  • I = Input
  • O = Output
  • D = Differential
  • Z = High impedance
  • S = Power supply voltage
  • G = Ground
  • A = Analog signal
Notes Remarks on special pin characteristics
Pin MUX alternative functions Muxes:
  • Pin ALT-0
  • ...
  • Pin ALT-N

The number of functions depends on platform

Pinout Table ODD pins declarationEdit

Pin Pin Name Internal Connections Ball/pin # Voltage domain Type Notes Pin MUX alternative functions
J1.1 BT_EN Bluetooth Enable 3.3V I
J1.3 BT_CTS Bluetooth HCI UART CTS 3.3V I
J1.5 BT_RX Bluetooth HCI UART RX 3.3V I
J1.7 BT_RTS Bluetooth HCI UART RTS 3.3V O
J1.9 BT_TX Bluetooth HCI UART TX 3.3V O
J1.11 DGND Ground - G
J1.13 DAT3 SDIO Data Bit 3 3.3V D
J1.15 DAT2 SDIO Data Bit 2 3.3V D
J1.17 DAT1 SDIO Data Bit 1 3.3V D
J1.19 DAT0 SDIO Data Bit 0 3.3V D
J1.21 DGND Ground - G
J1.23 SDO_CMD SDIO Command Line 3.3V I/O
J1.25 DGND Ground - G
J1.27 3.3V +3.3V Input Voltage 3.3V S
J1.29 5V +5V Input Voltage 5V S

Pinout Table EVEN pins declarationEdit

Pin Pin Name Internal Connections Ball/pin # Voltage domain Type Note Pin MUX alternative functions
J1.2 WIFI_EN WLAN Enable 3.3V I
J1.4 WIFI_IRQ WLAN Interrupt Request 3.3V O
J1.6 BT_F2 Bluetooth Wakeup 3.3V I Please leave unconnected if not used
J1.8 WIFI_CLK_REQ(A) HOST_WakeUp 3.3V O Please leave unconnected if not used
J1.10 NC Reserved for future use - Please leave unconnected.
J1.12 NC Reserved for future use - Please leave unconnected.
J1.14 NC Reserved for future use - Please leave unconnected.
J1.16 NC Reserved for future use - Please leave unconnected.
J1.18 NC Reserved for future use - Please leave unconnected.
J1.20 NC Reserved for future use - Please leave unconnected.
J1.22 DGND Ground - G
J1.24 SDO_CLK SDIO Clock 3.3V I
J1.26 DGND Ground - G
J1.28 3.3V +3.3V Input Voltage 3.3V S
J1.30 5V +5V Input Voltage 5V S

Electrical, Thermal and Mechanical FeaturesEdit

Operational characteristicsEdit

Maximum ratingsEdit

Parameter Min Typ Max Unit
Main power supply voltage -0.3 3.3 3.6 V

Recommended ratingsEdit

Parameter Min Typ Max Unit
Main power supply voltage 3.135 3.3 3.465 V


Mechanical specificationsEdit

This chapter describes the mechanical characteristics of the DWM module.

Board LayoutEdit

The following figure shows the physical dimensions of the DWM module:

 

ConnectorsEdit

The following figure shows the DWM connector layout:

   

CAD drawingsEdit

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