Wavecom G900 Manual de usuario descargar pdf (Pagina 39)

WM2C-G900/G1800 23/09/1999

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Electrical Characteristics

Parameter Min Max Unit

Input Impedance ( R )

kΩ

Input Impedance ( C )

50 pF

Operating conditions

Parameter I/O type Min Max Unit

0 V 0.6 V V

2.4 V VDD+0.5V V

3.3.11.2. BOOT

This input is used to download software in the Flash ROM of the

WISMO2C module. When this pin is low during reset of the module, the

internal boot procedure is started. In normal mode this pin has to be left

open. In Internal boot mode low level has to be set through a 1K

resistor. If used this input has to be driven by an open collector or an

open drain.

Pin description

Signal Pin number I/O I/O type Description

BOOT

12 I CMOS Flash Loading

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 50 51

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Wavecom G900 Manual de usuario Pagina 39