SoCKit User Manual
16
www.terasic.com
December 1, 2015
3
3
.
.
1
1
.
.
4
4
H
H
S
S
M
M
C
C
V
V
C
C
C
C
I
I
O
O
V
V
o
o
l
l
t
t
a
a
g
g
e
e
L
L
e
e
v
v
e
e
l
l
S
S
e
e
t
t
t
t
i
i
n
n
g
g
H
H
e
e
a
a
d
d
e
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r
r
On the SoCKit, the I/O standards of the FPGA/HSMC pins can be adjusted via JP2 (See
Figure
3-6)
. Adjustable standards allow even more flexibility and selection of daughter cards or
interconnect devices.
The HSMC connector’s default standard is 2.5V. Users must ensure that the voltage standards for
both the main board and daughter card are the same, or damage/incompatibility may occur.
Table 3-6
lists JP2 settings.
Figure 3-6 HSMC VCCIO Voltage Level Setting Header
Table 3-6 JP2 Header Setting for Different I/O Standard
JP2 Jumper Setting
I/O Voltage of HSMC Connector
Short Pin 1 and 2
1.5V
Short Pin 3 and 4
1.8V
Short Pin 5 and 6
2.5V (Default)
Short Pin 7 and 8
3.3V
Note:
1. JP2 only allows for one jumper at one time.
2. If no jumper is attached on JP2, the voltage standard will default to 1.5V
