Atech OEM Inc. WM100X User Manual

    iWEM-1000UM, Dec 30, 2010

 

7F, AAEON Building, No.43, Sec. 4, Keelung Rd, Taipei City 10607, Taiwan (R.O.C.) 

Tel: +886-2-2377-0282 

Fax: +886-2-2377-0283 

http://www.atechoem.com/

 

 

 

The Reset pin is required to be used only when the programming the flash memory on the module. Reset is 

active LOW and is optional/does not need to be connected. The Reset pin is 3.3V tolerant and has an 

internal pull up of 100K to the VDD_BATT. Leave the reset pin floating for typical applications. 

 

iWEM-1000 supports 3-wire and 5-wire UART configuration. The 3-wire configuration is standard TX, RX, 

and ground connection. The 5-wire configuration is with CTS/RTS flow control. When the 3-wire interface 

is used, connect only UART-TX, UART-RX and ground to external UART port. When the 5-wire UART 

configuration is used, connect 2 extra CTS/RTS lines.   

 

The UART configuration is set in command interface. The user can set baud rate, flow control and other 

UART parameters in the command interface. The default UART setting is 9600bps, 8 data bits, 1 start/stop 

bit, and no flow control. 

 

iWEM-1000 can be built with the choice of embedded chip antenna or UFL/SMA antenna connector. The 

user specifies the choice of antenna the user orders iWEM-100x series module. The embedded chip antenna 

is the most convenient selection. The UFL/SMA antenna connector version provides more flexibility and