Globalsat EB-5631RE User Manual page 8

NOTE:
1. RESET: Low Active, when EB-5631RE is accepted this single, EB-5631RE going to Hibernate
mode. If want EB-5631RE up, need input ON_OFF single.
2. TIMEMARK: One pulse per second output. When EB-5631RE is 3D Fixed, this pin will output
1uS Hi level pulse. If don't use this, just NC.
3. ECLK: ECLK clock input for frequency aiding applications or as a test clock. If don't use this,
just NC.
4. GPIO: User can use this I/O pin for special functions. For example, control LED, and can be
used External Interrupts. If don't use this, just NC.
5. WAKE_UP: EB-5631RE power on, WAKE_UP will output 1.8V.
6. ON_OFF: This pin is controlled EB-5631RE power on. If EB-5631RE want to EB-365 pin to pin
compactable, please ON_OFF connect to WAKE_UP. If don't use this, just NC.
7. DR I2C interface: The I2C interface supports required sensor instruments such as gyros,
accelerometers, compasses or other sensors that can operate with an I2C bus. If don't use
this, just NC.
8. VBAT: This is the battery backup power input for the SRAM and RTC when main power is
removed. VBAT is 2V ~ 3.5V.
9. EB-5631RE RF is has 3.3V external POWER to active ANTENNA use.
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