DWM ADD-ON/DWM Hardware/pdf

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General Information[edit | edit source]

DWM TOP View[edit | edit source]

DWM TOP View

DWM BOTTOM View[edit | edit source]

DWM BOTTOM View


Introduction[edit | edit source]

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.

Features[edit | edit source]

  • 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 timings[edit | edit source]

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


Hardware versioning and tracking[edit | edit source]

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 composition[edit | edit source]

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

Example[edit | edit source]

DWM ADD-ON code DWM0001I2R

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

Pinout Table[edit | edit source]

Connectors and Pinout Table[edit | edit source]

Connectors description[edit | edit source]

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 conventions[edit | edit source]

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 declaration[edit | edit source]

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 declaration[edit | edit source]

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 Features[edit | edit source]

Operational characteristics[edit | edit source]

Maximum ratings[edit | edit source]

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

Recommended ratings[edit | edit source]

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


Mechanical specifications[edit | edit source]

This chapter describes the mechanical characteristics of the DWM module.

Board Layout[edit | edit source]

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

Dwm-layout-top.png

Connectors[edit | edit source]

The following figure shows the DWM connector layout:

Dwm 05.png Dwm 06.png

CAD drawings[edit | edit source]