atr0621 ATMEL Corporation, atr0621 Datasheet - Page 12

• Manufacturer Part Number: atr0621
• Description: Gps Baseband Processor - Atmel Corporation
• Manufacturer: ATMEL Corporation

3.3.4
12
ATR0621 [Preliminary]
USB Power Mode
Table 3-9.
Table 3-10.
The following settings apply if GPSMODE configuration is not enabled, that is, GPSMODE = 0
(ROM-Defaults):
Table 3-11.
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.
NMEA Port
UBX Port
NMEA Port
UBX Port
Baud Rate (kBaud)
Input Protocol
Output Protocol
Messages
Information Messages
(UBX INF or NMEA TXT)
GPSMODE7 (Reset = PU) Description
0
1
Supported Messages at Setting High
Supported Messages at Setting Debug (Additional Undocumented Message
May be Part of Output Data)
Serial I/O Default Setting if GPSMODE Configuration is Deselected
(GPSMODE0 = 0)
USB Power Modes
Standard
Proprietary
NAV
MON
Standard
Proprietary
NAV
MON
RXM
USB device is bus-powered (max. current limit 100 mA)
USB device is self-powered (Default)
GGA, RMC, GSA, GSV, GLL, VTG, ZDA, GRS, GST
PUBX00, PUBX03, PUBX04
SOL, SVINFO, POSECEF, POSLLH, STATUS, DOP, VELECEF,
VELNED, TIMEGPS, TIMEUTC, CLOCK
SCHD, IO, IPC
GGA, RMC, GSA, GSV, GLL, VTG, ZDA, GRS, GST
PUBX00, PUBX03, PUBX04
SOL, SVINFO, POSECEF, POSLLH, STATUS, DOP, VELECEF,
VELNED, TIMEGPS, TIMEUTC, CLOCK
SCHD, IO, IPC
RAW (RAW message support requires an additional license)
USART1/USB
NMEA
57.6, Auto enabled
UBX, NMEA, RTCM
NMEA
GGA, RMC, GSA, GSV
User, Notice, Warning, Error
USART2
UBX
57.6, Auto enabled
UBX, NMEA, RTCM
UBX
NAV: SOL, SVINFO
User, Notice, Warning, Error
4890AS–GPS–09/05