atr0625p ATMEL Corporation, atr0625p Datasheet - Page 13

• Manufacturer Part Number: atr0625p
• Description: Gps Baseband Processor Supersense
• Manufacturer: ATMEL Corporation

4925F–GPS–09/07
Table 3-13.
Table 3-14.
The Antenna Supervisor Software will be configured as follows:
The antenna supervisor function may not be disabled by GPSMODE pin selection.
If the antenna supervisor function is not used, please leave open ANTON, NANTSHORT and
NAADET.
Pin
P0/NANTSHORT
P25/NAADET0/
MISO or
P14/NAADET1
P15/ANTON
Note:
GPSMODE11
(Reset = PU)
1. Enable Control Signal
2. Enable Short Circuit Detection (power down antenna via ANTON if short is detected via
3. Enable Open Circuit Detection via NAADET
1
1
1
1
NANTSHORT)
0
0
0
0
(1)
(1)
(1)
(1)
1. Leave open
Pin Usage of Active Antenna Supervisor
Antenna Detection I/O Settings
GPSMODE10
(Reset = PU)
1
1
1
1
0
0
0
0
Usage
NANTSHORT
NAADET
ANTON
(1)
(1)
(1)
(1)
(Reset = PU) Location of NAADET
GPSMODE8
1
1
1
1
0
0
0
0
(1)
(1)
(1)
(1)
Meaning
Active antenna short circuit detection
High = No antenna DC short circuit present
Low = Antenna DC short circuit present
Active antenna detection input
High = No active antenna present
Low = Active antenna is present
Active antenna power on output
High = Power supply to active antenna is switched on
Low = Power supply to active antenna is switched off
P25/NAADET0/MISO
P25/NAADET0/MISO
P14/NAADET1
P14/NAADET1
(Default ROM value)
P14/NAADET1
P14/NAADET1
P25/NAADET0/MISO
P25/NAADET0/MISO
Comment
Reserved for further use.
Do not use this setting.
Reserved for further use.
Do not use this setting.
Reserved for further use.
Do not use this setting.
ATR0625P
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