GXB5005
- 8 -
Status Out
“Status Out” signal turns over
1. Definition of internal status
Searching: Searching satellites after initialization
Tracking:
Navigation message decoded at least one satellite
Positioning: Position fixing
2. “Status Out” status by each internal status
Reset:
Input, pulled down internally
Initialization: Output Low
Searching: Output 1s High, 1s Low turn over
Tracking:
Output 0.5s High, 0.5s Low turn over
Positioning: Output High (keeping)
3. Jitter
Turns over regular pulse width
±
5% max.
|T – T
1
| / T
≤
5%
4. Status transition
Check internal status every 0.5s, only the status changes, “Status Out” output logic turns over and keeps
specified High-Low output interval.
Only status changes to positioning, “Status Out” output turns over High caused by the previous status.
0.5s
0.5s
Tracking
L
H
1.0s
L
1.0s
Searching
H
Positioning
L
H
1
2
3
4
T
H
T
1
T
T
1
L
L
H
T: Regular pulse width (1s/0.5s)
T
1
: Actual pulse width
Searching
Tracking
Positioning
1.0s
Low
High
Status Out
Change state
Change state
0.5s