Sierra Wireless Q2687 Manuel D’Utilisation
Wireless CPU Quik Q2687
Interfaces
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WA_ENG_Q2687_PTS_001-002
September 11, 2006
Electrical characteristics of the signal
Parameter
Minimum
Typ
Maximum Unit
Input Impedance ( R )*
330K Ω
Input Impedance ( C )
10n F
~RESET time (Rt)
1
200
µs
~RESET time (Rt)
2
at power
up only
20 40 100
ms
Cancellation time (Ct)
34
ms
V
H
0.57
V
V
IL
0
0.57
V
V
IH
1.33
V
* Internal pull-up
* V
H:
Hysterisis Voltage
1 This reset time is the minimum to be carried out on the ~RESET signal when the power supply is
already stable.
2 This reset time is internally carried out by the Wireless CPU power supply supervisor only when
the Wireless CPU power supplies are powered ON.
the Wireless CPU power supplies are powered ON.
Pin description
Signal
Pin
number
I/O
I/O type
Description
~RESET
18
I/O Open Drain
1V8
Wireless CPU
Reset
3.20
External Interrupt
The Wireless CPU Quik Q2687 provides two external interrupt inputs. These interrupt
inputs may be activated on:
• High to low edge
• Low to high edge
• Low to high and high to low edge
• Low level
• High level
• Low to high edge
• Low to high and high to low edge
• Low level
• High level
When used, the interrupt inputs must not be left open.
If not used, they must be configured as GPIOs.