ATR0621 Datasheet, PDF (12/20 Pages) ATMEL Corporation – GPS Baseband Processor

Table 3-9.
NMEA Port
UBX Port
Supported Messages at Setting High
Standard GGA, RMC, GSA, GSV, GLL, VTG, ZDA, GRS, GST
Proprietary PUBX00, PUBX03, PUBX04
NAV
SOL, SVINFO, POSECEF, POSLLH, STATUS, DOP, VELECEF,
VELNED, TIMEGPS, TIMEUTC, CLOCK
MON
SCHD, IO, IPC
Table 3-10.
NMEA Port
UBX Port
Supported Messages at Setting Debug (Additional Undocumented Message
May be Part of Output Data)
Standard GGA, RMC, GSA, GSV, GLL, VTG, ZDA, GRS, GST
Proprietary PUBX00, PUBX03, PUBX04
NAV
SOL, SVINFO, POSECEF, POSLLH, STATUS, DOP, VELECEF,
VELNED, TIMEGPS, TIMEUTC, CLOCK
MON
SCHD, IO, IPC
RXM
RAW (RAW message support requires an additional license)
The following settings apply if GPSMODE configuration is not enabled, that is, GPSMODE = 0
(ROM-Defaults):
3.3.4
Table 3-11. Serial I/O Default Setting if GPSMODE Configuration is Deselected
(GPSMODE0 = 0)
USART1/USB
NMEA
USART2
UBX
Baud Rate (kBaud)
57.6, Auto enabled
57.6, Auto enabled
Input Protocol
UBX, NMEA, RTCM
UBX, NMEA, RTCM
Output Protocol
NMEA
UBX
Messages
GGA, RMC, GSA, GSV
NAV: SOL, SVINFO
Information Messages
(UBX INF or NMEA TXT)
User, Notice, Warning, Error User, Notice, Warning, Error
USB Power Mode
For correct response to the USB host queries, the device has to know its power mode. This is
configured via GPSMODE7. If set to bus powered, an upper current limit of 100 mA is reported
to the USB host; that is, the device classifies itself as a “low-power bus-powered function” with
no more than one USB power unit load.
Table 3-12. USB Power Modes
GPSMODE7 (Reset = PU) Description
0
USB device is bus-powered (max. current limit 100 mA)
1
USB device is self-powered (Default)
12 ATR0621 [Preliminary]
4890AS–GPS–09/05