EVA-M8M - Hardware Integration Manual
UBX-14006179 - R02
Early Production Information
Design-in
Page 19 of 45
2.9
Pin description
Name
I/O
Description
Remark
ANT_OFF
O
Antenna control
Leave open if not used.
ANT_OK
I
Antenna status
Leave open if not used.
D_SEL
I
Interface selector
See section 2.2.
GND
I
Ground
Outer ground pin
GND
I
Ground
Outer ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
GND
I
Ground
Inner ground pin
PIO13 / EXTINT
I
External interrupt
Leave open if not used.
PIO14 / ANT_DET
I
Antenna detection
Leave open if not used.
Reserved
I/O
Reserved
Do not connect. Must be left open!
Reserved
I/O
Reserved
Do not connect. Must be left open!
Reserved
I/O
Reserved
Do not connect. Must be left open!
Reserved
I/O
Reserved
Do not connect. Must be left open!
Reserved
I/O
Reserved
Do not connect. Must be left open!
SQI_D0
I/O
Data line 0 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
SQI_CLK
I/O
Clock for external SQI flash memory or
configuration pin.
Leave open if not used.
cSQI_D2
I/O
Data line 2 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
SQI_D1
I/O
Data line 1 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
SQI_CS
I/O
Chip select for external SQI flash memory or
configuration enable pin.
Leave open if not used.
SQI_D3
I/O
Data line 3 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
Reserved
I/O
Reserved
Do not connect. Must be left open!
SAFEBOOT_N
I
Used for programming the SQI flash
memory and testing purposes.
Leave open if not used.
Reserved
I/O
Reserved
Do not connect. Must be left open!
RESET_N
I
System reset
See section 2.7.
RF_IN
I
RF Input
Add external LNA and SAW if no active antenna
used.
RTC_O
O
RTC Output
Leave open if no RTC Crystal attached.
RTC_I
I
RTC Input
Connect to GND if no RTC Crystal attached.
RX / MOSI
I
Serial interface
See section 2.2.
SCL / SCK
I
Serial interface
See section 2.2.
SDA / CS_N
I/O
Serial interface
See section 2.2.
TIMEPULSE
O
Time pulse output
Leave open if not used.
TX / MISO
O
Serial interface
See section 2.2.
USB_DM
I/O
USB data
Leave open if not used.
USB_DP
I/O
USB data
Leave open if not used.
V_BCKP
I
Backup supply
See section 2.1.
VCC
I
Main supply
See section 2.1.
VCC_IO
I
I/O Supply
See section 2.1.
V_USB
I
USB Interface power
Connect to GND if not used.
Table 5: EVA-M8M pin description
