ZOE-M8B - System Integration Manual
UBX-17045131 - R04
Contents
Page 21 of 42
Production Information
2.8
Pin description
Pin # Name
I/O
Description
Remark
A1
GND
Ground
Ensure good GND connection
A2
SDA / SPI CS_N I/O
Serial interface.
See section 0
A3
GND
Ground
Ensure good GND connection
A4
RF_IN
I
GNSS signal input
See section 2.5
A5
GND
Ground
Ensure good GND connection
A6
Reserved
I/O
Reserved. Do not connect.
Must be left open!
A7
GND
Ground
Ensure good GND connection
A8
GND
Ground
Ensure good GND connection
A9
GND
Ground
Ensure good GND connection
B1
SCL / SPI CLK
I
Serial interface.
See section 0
B9
GND
Ground
Ensure good GND connection
C1
SQI_D1
I
Data line 1 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
C3
PIO11
I/O
Digital I/O
Leave open if not used.
C4
SAFEBOOT_N
I
Used for programming the SQI flash memory
and testing purposes.
Leave open if not used.
C5
LNA_EN
O
LNA on/off signal connected to internal LNA
Leave open if not used.
C6
PIO15
I/O
Digital I/O
Leave open if not used.
C7
GND
Ground
Ensure good GND connection
C9
GND
Ground
Ensure good GND connection
D1
SQI_D0
I/O
Data line 0 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
D3
SQI_CS_N
I/O
Chip select for external SQI flash memory or
configuration enable pin.
Leave open if not used.
D4
D_SEL
I
Interface selector
See section 0
D6
GND
Ground
Ensure good GND connection
D9
GND
Ground
Ensure good GND connection
E1
SQI_CLK
I/O
Clock for external SQI flash memory or
configuration pin.
Leave open if not used.
E3
SQI_D2
I/O
Data line 2 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
E7
GND
Ground
Ensure good GND connection
E9
Reserved
I/O
Reserved
Do not connect. Must be left open!
F1
Reserved
I/O
Reserved
Do not connect. Must be left open!
F3
SQI_D3
I/O
Data line 3 to external SQI flash memory or
reserved configuration pin.
Leave open if not used.
F4
Reserved
I/O
Reserved
Do not connect. Must be left open!
F6
PIO14
I/O
Digital I/O
Leave open if not used.
F7
GND
Ground
Ensure good GND connection
F9
Reserved
I/O
Reserved
Do not connect. Must be left open!
G1
VCC
I
Supply voltage
Clean and stable supply needed
G3
GND
Ground
Ensure good GND connection
G4
PIO13 / EXTINT I
External interrupt
Leave open if not used.
G5
Reserved
I/O
Reserved
Do not connect. Must be left open!
G6
GND
Ground
Ensure good GND connection
G7
GND
Ground
Ensure good GND connection
