Specifications

WM_PRJ_Q2501_PTS_001 – 003
March 2004
© 2003 All rights reserved
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
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Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son
autorisation préalable.
2.6.4 SIM interface
The WISMO Quik Q2501 module is designed to interface with 3V SIM cards
only, in compliance with ETS 300 641 and 3GPP TS 51.011 V5.0.0
recommendations (refer to § 6.1.1).
Nevertheless, it is possible to manage 1.8V/3V or 3V/5V SIM cards using an
external voltage level shifter controlled by the GPO1 output signal (refer to
§ 2.6.2 and to document [2]: Customer Design Guidelines).
Pin description
Signal Pin # I/O I/O type Description
SIM_CLK 23 O 2X SIM Clock
SIM_RST 25 O 2X SIM Reset
SIM_DATA 27 I/O CMOS / 3X SIM Data
SIM_VCC 29 O - SIM Power Supply
SIM_PRES 70 I CMOS SIM Card Detect
Note for SIM_PRES connection
:
•
When not used SIM_PRES has to be tied to VCC.
•
When used, a low to high transition means that the SIM card is inserted
and a high to low transition means that the SIM card is removed.
2.6.5 Keyboard interface
This interface provides 10 connections:
•
5 rows (ROW0 to ROW4),
•
5 columns (COL0 to COL4).
The scanning is a digital one, and the debouncing is done in the WISMO
module. No discrete components like resistors or capacitors are needed.
The keyboard scanner is equipped with internal pull-down resistors for the rows
and pull-up resistors for the columns. Current only flows from the column pins
to the row pins.
Pin description
Signal Pin # I/O I/O type Description
ROW0 33 I/O CMOS / 1X Row scan
ROW1 35 I/O CMOS / 1X Row scan
ROW2 37 I/O CMOS / 1X Row scan
ROW3 39 I/O CMOS / 1X Row scan
ROW4 41 I/O CMOS / 1X Row scan
COL0 43 I/O CMOS / 1X Column scan
COL1 45 I/O CMOS / 1X Column scan