Sierra Wireless MP 700 Series Especificaciones descargar pdf (Pagina 35)

Electrical Specifications

Rev 6 Mar.13 Proprietary and Confidential - Contents subject to change 35

Control interface (Signals)

The MC7710 provides signals for:

• Waking the host when specific events occur

• Power control of the module from the host

• LED driver output

These signals are summarized in Ta bl e 4-5 and paragraphs that follow.

WAKE_N — Wake host

The module uses WAKE_N to wake the host when specific events occur. (Support

for this signal is firmware dependent. Contact your Sierra Wireless account

representative to determine specific availability.)

The host must provide a 5 k–100 k pullup resistor that considers total line

capacitance (including parasitic capacitance) such that when

WAKE_N is

deasserted, the line will rise to 3.3

V in < 100 ns.

See Figure 4-5 on page 35 for a recommended implementation.

Figure 4-5: Recommended WAKE_N connection

Table 4-5: Module control signals

Name Pin Description

Type

1. O — Digital pin Output; PU — Digital pin Input, internal pull up

WAKE_N

1 Wake host O

W_DISABLE_N 20 Wireless disable (Main RF) PU

WLAN_LED_N 42 LED driver O

GPS_EN_N

2. Support for this signal is firmware dependent. Contact your Sierra Wireless account repre-

sentative to determine specific availability.

51 Wireless disable (GPS) PU

Control

WAKE_N

5k-100k

Host

3.3V

MiniCard

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 103 104

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Sierra Wireless MP 700 Series Especificaciones Pagina 35