Atech OEM Inc. WM100X Manuel D’Utilisation
iWEM-1000UM, Dec 30, 2010
Atech Technology Co., Ltd.
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/
2.4. Reset
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.
2.5. UART
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.
2.6. Embedded Chip Antenna/Antenna Connectors
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