User's Manual

16
1.4.5 W_DISABLE#
This control setting is implementation-specific and represents the collective intention of the
host software to manage radio operation. T77H468 provides a hardware pin (W_DISABLE#)
to disable or enable the radio. Besides, the radio can also be enabled or disabled through
software AT commands.
Item State Function (WWAN state)
W_DISABLE#1 Low WWAN Disabled (no RF operation allowed)
High WWAN Enabled (RF operation allowed), internally pull up
W_DISABLE#2 Low GPS Disabled (no RF operation allowed)
High GPS Enabled (RF operation allowed), internally pull up
1.4.6 LED Indication
The LED signal is provided to enable wireless communication add-in cards to provide status
indications to users via system provided indicators
(1) State of the LED# pin
Item State Definition Interpretation
1 Low The LED is emitting light. Radio is capable of transmitting.
2 High The LED is emitting no light. Radio is incapable of transmitting.
(2) Typical LED Connection in Platform/System
.