WA_DEV_W218_PTS_002 Rev 005 Page 24 of 109
Product Technical Specification &
Customer Design Guidelines
3. Interfaces

General Interfaces

The WIreless Standard MOdem, WISMO218, has a 46-pin castellation connection, which provides
access to all available interfaces.
The available interfaces are listed in the table below.
Subse ction Name
Drive n by AT Com mands
Serial Interface (SPI)
No
Main Serial Link
Yes
SIM Interface
Yes
General Purpose IO
Yes
Analog to Digital Converter
No (*)
Analog Audio Interface
No (*)
PWMs
Yes
PWM2 for Buzzer Output
Yes
ON/~OFF
No
Module Ready Indication
No
VBAT_RTC (Backup Battery)
No
TX Burst Indication Signal
No
Reset
No
(*) These interfaces will have AT command support in future versions.