Wireless Module (DWM)
Revision as of 15:59, 2 November 2012 by DevWikiAdmin (talk | contribs) (→Pinout and detailed pin functions)
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Contents
Introduction[edit | edit source]
Specification[edit | edit source]
Power consumption[edit | edit source]
Pinout and detailed pin functions[edit | edit source]
| Pin number | Name | Type | Description | Voltage | Note |
| 1 | BT_EN | Power | Main power supply input | 2.0 – 5.5V | |
| 2 | WIFI_EN | Power | Main power supply input | 2.0 – 5.5V | |
| 3 | UART2_RTSn | Power | Backup power supply input (available on request) | 1.8 – 5.5V | If not available, please leave unconnected. |
| 4 | WIFI_IRQ | Power | Backup power supply input (available on request) | 1.8 – 5.5V | If not available, please leave unconnected. |
| 5 | UART2_TXD | Ground | |||
| 6 | BT_F2 | Ground | |||
| 7 | UART2_CTSn | Reserved for future use | - | Please leave unconnected. | |
| 8 | WIFI_CLK_REQ(A) | Reserved for future use | - | Please leave unconnected. | |
| 9 | UART2_RXD | Reserved for future use | - | Please leave unconnected. | |
| 10 | NC | Open-drain output | Status indicator for backup power supply. Pulls down when power is drawn from VIN_AUX rail. | Can be left open or grounded when not used. | |
| 11 | DGND | Open-drain output | Overcurrent/thermal warning indicator. Pulls down when either main power supply or backup power supply current exceeds its current limit (4A) or die temperature of internal switch (130°C) is close to thermal shutdown. | ||
| 12 | NC | Open-drain output | Status indicator for main power supply. Pulls down when power is drawn from VIN_AUX rail. | Can be left open or grounded when not used. When used, must be pulled-hi | |
| 13 | DAT3 | Reserved for future use | - | Please leave unconnected. | |
| 14 | NC | Reserved for future use | - | Please leave unconnected. | |
| 15 | DAT2 | Reserved for future use | - | Please leave unconnected. | |
| 16 | NC | Reserved for future use | - | Please leave unconnected. | |
| 17 | DAT1 | Reserved for future use | - | Please leave unconnected. | |
| 18 | NC | Reserved for future use | - | Please leave unconnected. | |
| 19 | DAT0 | Ground | |||
| 20 | NC | Ground | |||
| 21 | DGND | Differential | USB data port (positive) | ||
| 22 | DGND | Differential | USB data port (negative) | ||
| 23 | SDO_CMD | Ground | |||
| 24 | SDO_CLK | Reserved for future use | - | Please leave unconnected. | |
| 25 | DGND | Reserved for future use | - | Please leave unconnected. | |
| 26 | DGND | Ground | |||
| 27 | 3.3V | Ground | |||
| 28 | 3.3V | Reserved for future use | - | Please leave unconnected. | |
| 29 | 5V | Reserved for future use | - | Please leave unconnected. | |
| 30 | 5V | Reserved for future use | - | Please leave unconnected. | |
Reset[edit | edit source]
Integration guide[edit | edit source]
This section provides useful information and resources that allow the system designer to integrate DWM module in his/her application very quickly.
Typical scenarios[edit | edit source]
Mechanical information[edit | edit source]
Layout[edit | edit source]
The following images show the module layout:
The component view (top and bottom) is avalable as PDF file:
