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Status Out
"Status Out" signal turns over
1. Definition of internal status
Searching:
Tracking:
Positioning: Position fixing
2. "Status Out" status by each internal status
Reset:
Initialization: Output Low
Searching:
Tracking:
Positioning: Output High (keeping)
H
Searching
L
H
Tracking
L
H
Positioning
L
3. Jitter
Turns over regular pulse width ±5% max.
| / T ≤ 5%
|T – T
1
H
L
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.
High
Status Out
Low
Searching satellites after initialization
Navigation message decoded at least one satellite
Input, pulled down internally
Output 1s High, 1s Low turn over
Output 0.5s High, 0.5s Low turn over
1
1.0s
0.5s
T
T
1
T: Regular pulse width (1s/0.5s)
T
: Actual pulse width
1
1.0s
Searching
2
1.0s
0.5s
H
L
0.5s
Tracking
Change state
- 8 -
3
T
T
1
Positioning
Change state
GXB5005
4
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