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Cyclone 10 LP RefKit User Guide
www.arrow.com
Page | 20
February 2022
Board Reference
Connector
Description
AREF
J1 / 8
External Reference Voltage
AIN0
J4 / 1
Analog I/O Channel 0
AIN1
J4 / 2
Analog I/O Channel 1
AIN2
J4 / 3
Analog I/O Channel 2
AIN3
J4 / 4
Analog I/O Channel 3
AIN4
J4 / 5
Analog I/O Channel 4
AIN5
J4 / 6
Analog I/O Channel 5
AIN6
TP1
Analog I/O Channel 6
AIN7
TP2
Analog I/O Channel 7
3.3.9
I2C Grove Connector
There is a Grove connector which allows external, I2C compatible devices to be connected to the
C10LP RefKit board.
Board
Reference
FPGA Pin
No.
Grove Pin
Pin
Func.
Description
I/O Std
I2C_SCL
PIN_D20
1
Output
Serial Clock Line
3.3 V
I2C_SDA
PIN_F17
2
Bidir
Serial Data Line
3.3 V
3.3V
-
3
PWR
3.3V power to the connector
-
GND
-
4
PWR
Ground output to the connector
-
I C CL
I C D
r e
C nnect r
D
D
Note: The FPGA is also directly connected to the J4 connector. If AIN5..0 are used as analog
input/output, make sure that the belonging FPGA I/Os are unused and configured as
input tri-stated!
Note: Do not drive a voltage greater than 3.3V to the analog I/Os. Voltages greater than
3.3V can cause irreversible damage to the FPGA!
Figure 15
–
I2C Grove Connector
Note: The EEPROMs are also connected to this I2C bus, 0x50h and 0x51h addresses are
reserved for these EEPROMs.