UMTS/HSDPA Module
UC15 Hardware Design
UC15_Hardware_Design Confidential / Released 48 / 72
Table 21: Pin Definition of Network Indicator
Pin Name
Pin No.
I/O
Description
Comment
NETLIGHT 6
DO
Indicate the module network activity
status.
2.6V power domain.
Table 22: Working State of the Network Indicator
Pin name
Status
Description
NETLIGHT
Flicker slowly (200ms High/1800ms Low).
Networks searching.
Flicker slowly (1800ms High/200ms Low).
Idle.
Flicker quickly (125ms High/ 125ms Low).
Data transfer is ongoing.
Always High.
Voice calling.
Always Low.
Sleep.
A reference circuit is shown in the following figure
.
Figure 29: Reference Circuit of the Network Indicator
3.15. Operating Status Indication
The STATUS pin is a general purpose output type for indicating the module operation status. User can
connect
it to a GPIO of DTE or as LED indication circuit as below in order to judge the module’s operation
status. When the module is turned on normally, the STATUS will present the high state.
