8
LatticeMico32/DSP Development Board
Lattice Semiconductor
User’s Guide
Expansion Connector
The expansion connector provides 46 user I/Os connected to the FPGA. The remaining pins serve as power and
clock supplies for expansion boards. The expansion connector is configured as two 2x20 100mil centered pin head-
ers (X12 and X13). Tables 7 and 8 describe the connections to the FPGA.
Table 7. Expansion Connector X12
Pin
Signal Name
FPGA Pin
Pin
Signal Name
FPGA Pin
1
GND
—
2
n.c. (coding)
—
3
VCC2V5
—
4
EXPCON IO29
W21
5
EXPCON IO30
W20
6
EXPCON IO31
W19
7
EXPCON IO32
Y20
8
EXPCON IO33
AA22
9
EXPCON IO34
AA21
10
EXPCON IO35
AB21
11
EXPCON IO36
T17
12
EXPCON IO37
T14
13
EXPCON IO38
T13
14
EXPCON IO39
U14
15
EXPCON IO40
U13
16
EXPCON IO41
U12
17
EXPCON IO42
U11
18
EXPCON IO43
V14
19
EXPCON IO44
V13
20
EXPCON IO45
W13
21
VCC5V0
—
22
GND
—
23
VCC2V5
—
24
GND
—
25
VCC3V3
—
26
GND
—
27
VCC3V3
—
28
GND
—
29
EXPCON OSC
—
30
GND
—
31
EXPCON CLKIN
—
32
GND
—
33
EXPCON CLKOUT
—
34
GND
—
35
VCC3V3
—
36
GND
—
37
VCC3V3
—
38
GND
—
39
VCC3V3
—
40
GND
—
Table 8. Expansion Connector X13
Pin
Signal Name
FPGA Pin
Pin
Signal Name
FPGA Pin
1
HPE RESET#
—
2
GND
—
3
EXPCON IO0
K22
4
EXPCON IO01
K21
5
EXPCON IO2
L22
6
EXPCON IO03
L21
7
EXPCON IO4
L20
8
EXPCON IO05
M22
9
EXPCON IO6
M21
10
EXPCON IO07
M20
11
EXPCON IO8
M19
12
EXPCON IO09
M18
13
EXPCON IO10
N22
14
EXPCON IO11
N21
15
EXPCON IO12
N20
16
EXPCON IO13
N19
17
EXPCON IO14
N18
18
EXPCON IO15
P22
19
GND
—
20
VCC3V3
—
21
EXPCON IO16
P21
22
GND
—
23
EXPCON IO17
P20
24
GND
—
25
EXPCON IO18
P18
26
GND
—
27
EXPCON IO19
P19
28
EXPCON IO20
R22
29
EXPCON IO21
R21
30
GND
—
31
EXPCON IO22
R19
32
EXPCON IO23
R18