User's Manual

GSM/GPRS/GNSS Module Series
MC60 Hardware Design
MC60_Hardware_Design Confidential / Released 36 / 99
3.4.1.3. Wake up GSM Part from SLEEP Mode
When the GSM part is in the SLEEP mode, it can be woken up through the following methods:
 If the DTR Pin is set low, it would wake up the GSM part from the SLEEP mode. The UART port will
be active within 20ms after DTR is changed to low level.
 Receiving a voice or data call from network wakes up the GSM part.
 Receiving an SMS from network wakes up the GSM part.
DTR pin should be held at low level during communication between the GSM part and the DTE.
3.4.2. Operating Modes of GNSS Part
3.4.2.1. Full on Mode
Full on mode includes tracking mode and acquisition mode. Acquisition mode is defined as that the GNSS
part starts to search satellites, and to determine the visible satellites, coarse carrier frequency & code
phase of satellite signals. When the acquisition is completed, it switches to tracking mode automatically.
Tracking mode is defined as that the GNSS part tracks satellites and demodulates the navigation data
from specific satellites.
When the GNSS_VCC is valid, the GNSS part will enter into full on mode automatically. The following
table describes the default configuration of full on mode.
Table 10: Default Configuration of Full on Mode (GNSS Part)
Item Configuration Comment
Baud Rate 115200bps
Protocol NMEA RMC, VTG, GGA, GSA, GSV and GLL
Update Rate 1Hz
SBAS Enable
AIC Enable
LOCUS Disable
NOTE