LFE2-50E-D-EVN Lattice, LFE2-50E-D-EVN Datasheet - Page 8

• Manufacturer Part Number: LFE2-50E-D-EVN
• Description: MCU, MPU & DSP Development Tools LatticeMico32/DSP DEV BD/LatticeECP2
• Manufacturer: Lattice

Specifications of LFE2-50E-D-EVN

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
Ethernet Interface
An Intel LXT971A is included for Ethernet PHY. This is an IEEE-compliant Fast Ethernet PHY Transceiver that
directly supports both 100BASE-TX and 10BASE-T applications, full and half duplex. For more information, please
refer to the data sheet of this component.
Each board has its own unique MAC address so that no conflicts with other components in the network will occur.
Specify this MAC address for synthesis of Ethernet designs. It can be found on the sticker at the bottom side of
your board.
Table 6. Ethernet Controller U0801 Pin Definition
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 X13
Pin
11
13
15
17
19
21
23
25
27
29
31
33
35
1
3
5
7
9
Pin
43
46
48
52
54
56
58
60
63
EXPCON_CLKOUT
4
EXPCON_CLKIN
EXPCON_IO30
EXPCON_IO32
EXPCON_IO34
EXPCON_IO36
EXPCON_IO38
EXPCON_IO40
EXPCON_IO42
EXPCON_IO44
EXPCON_OSC
Signal Name
VCC2V5
VCC5V0
VCC2V5
VCC3V3
VCC3V3
VCC3V3
HPE_RESOUT#
GND
Signal Name
ETH_RXCLK
ETH_TXCLK
ETH_RXD2
ETH_RXD0
ETH_TXER
ETH_TXD1
ETH_TXD3
ETH_MDC
ETH_CRS
FPGA Pin
FPGA Pin
G1
G3
H5
H7
E1
E3
AE24
AA26
F1
F5
—
—
—
—
—
—
—
—
—
—
W26
M26
U26
V25
V23
N26
L26
L25
8
Pin
42
45
47
49
53
55
57
59
62
64
LatticeMico32/DSP Development Board
Pin
10
12
14
16
18
20
22
24
26
28
30
32
34
36
2
4
6
8
ETH_MDINTR#
Signal Name
ETH_RXER
ETH_MDIO
ETH_RXD3
ETH_RXD1
ETH_RXDV
ETH_TXEN
ETH_TXD0
ETH_TXD2
ETH_COL
for LatticeECP2 User’s Guide
EXPCON_IO29
EXPCON_IO31
EXPCON_IO33
EXPCON_IO35
EXPCON_IO37
EXPCON_IO39
EXPCON_IO41
EXPCON_IO43
EXPCON_IO45
Signal Name
NC (coding)
GND
GND
GND
GND
GND
GND
GND
GND
FPGA Pin
W25
W24
N25
R25
R26
Y26
P26
V26
V24
P25
FPGA Pin
G2
G4
H4
H6
H8
F2
F6
E2
E4
—
—
—
—
—
—
—
—
—