Rainbow Electronics DAB-WLS-C01 (WiFi) - Manual (Page 7)

DSH_WISMC01_1v2 WISM 40 pin TCP-IP Data Sheet.doc © 2007 EZURiO Ltd
Page 7
5. Electrical
5.1 40 way Hirose Pin Descriptions
The Hirose DF12C board-to-board connector on the module is a 40-pin double-row receptacle.
The table below defines the pin functions. The pin-out is as viewed from the underside of the Module.
Pin
No.
Signal Description Pin
No.
Signal Description
1 ADC 0 3.0 V Max 2 GPIO1 I/O for Host.
3 ADC 1 3.0 V Max 4 GPIO2 I/O for Host
5 WLAN_ACTIVE Output 6 UART_RI Ring or GPIO12
7 N/C 8 UART_DCD DCD or GPIO13
9 N/C 10 UART_DSR DSR or GPIO10
11 GND 12 UART_DTR DTR or GPIO11
13 RESET Reset Input 14 GPIO4 I/O for Host
15 GND 16 GPIO5 I/O for Host
17 N/C 18 GND
19 UART_CTS Clear to Send Input 20 N/C
21 UART_TX Transmit Data Output 22 WAKEUP Reserved
23 UART_RTS Request to Send Output 24 BT_PRIORITY Input
25 UART_RX Receive Data Input 26 N/C
27 VCC_3V 3.0V Monitor 28 VCC_5V Supply
29 VCC_5V Supply 30 GND
31 VCC_5V Supply 32 N/C
33 GPIO6 I/O for Host 34 N/C
35 GPIO7 I/O for Host 36 GND
37 GPIO8 I/O for Host 38 GND
39 GPIO9 I/O for Host 40 BT_STATE Input
Notes:
The reset circuitry within the module incorporates a brown-out detector. The reset pin has a fixed
10kOhm pull down resistor to ground, followed by a 10kOhm resistor feeding the base of a transistor.
GPIO lines can be configured through software to be either inputs or outputs. At reset, all GPIO lines
are configured as inputs.
UART_RX, UART_TX, UART_CTS, UART_RTS, UART_RI, UART_DCD, UART_DTR and UART_DSR are all
3.0v level logic. When the signal sits at 3.0V it is de-asserted. When the signal is at 0V it is asserted.
UART_RX, UART_TX, UART_CTS, UART_RTS are controlled directly by the module. The operation of
UART_RI, UART_DCD and UART_DTR is user programmable under script control.
Pin 27 (VCC_3V) may only be used for monitoring purposes. It must not be used as a current source.
Pin 22 (WAKEUP) will be used for future powersave functionality. It has an internal 100kOhm pull-up.
ADC inputs (pins 1 and 3) are read using UWscript functions.
UART_DSR is used to enable autorun. After power-up it can be used as GPIO. See Section 8.2.
Pins marked N/C may have internal connections within the module and should not be connected to any
external circuitry.