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WA_DEV_W218_PTS_002 Rev 005 Page 21 of 109
Product Technical Specification &
Customer Design Guidelines
Serial bus SPI for debug trace
PWM0,1 and PWM2 for buzzer output
GPIOs
ON/~OFF
TX burst indicator
Module ready indicator
Reset
Firmware
Drives the WISMO218 via an AT command interface over a serial port
Full GSM/GPRS Operating System stack
Real Time Clock with calendar
Connection Interfaces
The WISMO218 has a 46-pin castellation form factor which provides:
One ANT pin for RF in/out
Other pins for baseband signals