Sierra Wireless AirPrime SL808 Series, Product Technical Specification & Customer Design Manuallines, Page: 73 / 122

Rev 1 Dec.10 Proprietary and Confidential - Specifications subject to change 73
5.7 Flash LED (LED_FLASH)
This digital output may be used to drive a general purpose LED.
5.7.1 Pin descriptions
Table 5-15 describes the LED signal pin.
See Digital I/O electrical information on page 39 for 1V8 voltage characteristics
and reset state definitions.
5.7.2 Electrical characteristics
Table 5-16 describes the LED_FLASH signal’s electrical characteristics.
Refer to Table 4-2 on page 34 for basic characteristics (type, voltage).
Table 5-14: LED signal features
Feature Details
Purpose Flash LED output
•
Used by host to control LED status by controlling LED diode
bias.
Implementation
•
Digital output. 1.8 V logic
•
Source/sink maximum—8 mA
•
LED behavior can be configured by adjusting software settings.
•
LED pattern can be used to indicate network connection status.
•
Blink rate up to 10 Hz supported
Table 5-15: LED_FLASH pin description
Pin Signal I/O I/O type Reset state Description
60
LED_FLASH O Digital output 1 and
Undefined
LED driving
Table 5-16: LED_FLASH signal electrical characteristics
Parameter Condition Minimum Typical Maximum Unit
V
OL
0.4 V
V
OH
V
I
OUT
8 mA