Wavecom WISMO Quik Q2406 - Reset Signal (~RST); External Interrupt (~INTR); Figure 21: ~RST Pin Connection

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WM_PRJ_Q2400_PTS_005 -007

18th January 2006

Confidential©

Page: 34 / 51

This document is the sole and exclusive property of WAVECOM. Not to be

distributed or divulged without prior written agreement.

2.7 Reset signal (~RST)

This signal is used to force a reset procedure by providing low level during at

least 500 µs.

This signal has to be considered as an emergency reset only.

A reset procedure is already driven by an internal hardware during the power-up

sequence.

This signal can also be used to provide a reset to an external device. It then

behaves as an output.

If no external reset is necessary this input can be left open. If used (emergency

reset), it has to be driven by an open collector or an open drain output.

BOOT : Pin 12

∼

RST: Pin 14

Switch RESET

Figure 21: ∼RST pin connection

• If Switch RESET = 1, ∼RST pin 14 = 0, for Module Reset

• If Switch RESET = 0, ∼RST pin 14 = 1, for normal mode

2.8 External Interrupt (~INTR)

The WISMO Quik Q24x6 sub-series provides an external interrupt input (~INTR).

This input is very sensitive and an interrupt is activated on high to low edge.

If this signal is not used, it can be left open. If used this input has to be driven by

an open collector or an open drain.

This input is used for instance to power OFF automatically the module.