EVA-M8E - Hardware Integration Manual
UBX-15028542 - R05
Contents
Page 19 of 44
Production Information
2.9
Pin description
Pin #
Name
I/O
Description
Remark
1
RF_IN
I
RF Input
Add external LNA and SAW if no active
antenna used.
2
GND
I
Ground
Outer ground pin
3
Reserved
I/O
Reserved
Do not connect. Must be left open!
4
Reserved
I/O
Reserved
Do not connect. Must be left open!
5
USB_DM
I/O
USB data
Leave open if not used.
6
USB_DP
I/O
USB data
Leave open if not used.
7
VDD_USB
I
USB Interface power
Connect to GND if not used.
8
RTC_O
O
RTC Output
Leave open if no RTC Crystal attached.
9
RTC_I
I
RTC Input
Connect to GND if no RTC Crystal
attached.
10
Reserved
I/O
Reserved
Do not connect. Must be left open!
11
Reserved
I/O
Reserved
Do not connect. Must be left open!
12
PIO14/ANT_DET I
Normal PIO; Or antenna detection
Leave open if not used.
13
SEN_SCL
I/O
I2C clock for external IMU
Leave open if not used.
14
RESET_N
I
System reset
See section 2.7.
15
RXD /SPI MOSI I
Serial interface
See section 2.2.
16
TXD /SPI MISO
O
Serial interface
See section 2.2.
17
Reserved
I/O
Reserved
Do not connect. Must be left open!
18
GND
I
Ground
Outer ground pin
19
VCC
I
Main supply
See section 2.1.
20
VCC_IO
I
I/O Supply
See section 2.1.
21
V_BCKP
I
Backup supply
See section 2.1.
22
SQI_D0
I/O
Data line 0 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
23
SQI_CLK
I/O
Clock for external SQI flash memory or
configuration pin.
Leave open if not used.
24
SQI_D2
I/O
Data line 2 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
25
SQI_D1
I/O
Data line 1 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
26
SQI_CS_N
I/O
Chip select for external SQI flash memory
or configuration enable pin.
Leave open if not used.
27
SQI_D3
I/O
Data line 3 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
28
Reserved
I/O
Reserved
Do not connect. Must be left open!
29
SCL / SPI CLK
I
Serial interface
See section 2.2.
30
SDA / SPI CS_N I/O
Serial interface
See section 2.2.
31
SEN_SDA
O
I2C data line for external IMU.
Leave open if not used.
32
D_SEL
I
Interface selector
See section 2.2.
33
SAFEBOOT_N /
TIMEPULSE
I
Used for programming the SQI flash
memory and testing purposes, or time
pulse output
Leave open if not used.
34
ANT_OK
I
Antenna status; o
Leave open if not used.
35
ANT_OFF
O
Antenna control
Leave open if not used.
36
Reserved
I/O
Reserved
Do not connect. Must be left open!
37
GND
I
Ground
Inner ground pin
