LFXP2-17E-L-EV Lattice, LFXP2-17E-L-EV Datasheet - Page 12

• Manufacturer Part Number: LFXP2-17E-L-EV
• Description: MCU, MPU & DSP Development Tools LatticeXP2 EVAL BRD STD
• Manufacturer: Lattice

Specifications of LFXP2-17E-L-EV

• Processor To Be Evaluated: LatticeXP2-17 FPGA
• Interface Type: RS-232, USB
• Silicon Manufacturer: Lattice
• Core Architecture: FlexiFLASH
• Silicon Core Number: LFXP2-17E-4F484C
• Silicon Family Name: LatticeXP2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
LCD Connector
Connector J13 is a 2x9 100mil center-center header designed to allow the use of LCD displays. The connector pro-
vides 5V directly from the DC input (J9). It also has adjustable backlight (R15) and contrast (R16) potentiometer
controls. The connector is designed for use with LCD displays such as the Lumex LCM-S02002DSF or LCM-
S02002DSR. Note: Recent Lumex specifications show a 16-pin interface, which corresponds to pins 2-18 on the
J13 LCD Connector.
Table 11. LCD Connections
RS232 Interface
The evaluation board provides a RS232 connection for interfacing to equipment with RS232 ports. The RS232 con-
nector is a female DB9 connector, and can be found in the northeast corner of the board. Four 1x3 jumpers are
provided on the board to permit reconfiguration of the RX/TX/RTS/CTS connections.
Table 12. RS232 DB9 Pin Assignments
The LatticeXP2 FPGA is connected to the RS232 DB9 connector using a Max 3232 buffer chip. This buffer permits
the LatticeXP2 3.3V I/O pins to be interfaced to the 12V RS232 signaling standard. The LatticeXP2 I/O pins that
connect to the RS232 buffer listed in Table 13.
Table 13. LatticeXP2 to RS232 Pin Assignments
RS232 Signal
CTS
RTS
RX
TX
LCD Pin #
10
11
12
13
14
15
16
6
7
8
9
Connector
RS232 Signal
J18
J17
J19
J22
CTS
RTS
RX
RW
TX
D0
D2
D4
D6
LCD Function
Physical Connection
Silkscreen Text
Physical Connection
Silkscreen Text
Physical Connection
Silkscreen Text
Physical Connection
Silkscreen Text
Physical Connection
Silkscreen Text
RS
D1
D3
D5
D7
E
12
LatticeXP2 I/O
C21
B22
B21
C22
Pin 1-2
J16-3
J16-2
J16-7
J16-8
LatticeXP2 I/O
Evaluation Board User’s Guide
U22
R22
R22
R20
R20
R21
N22
N22
T21
T22
T20
P21
P21
P22
P20
—
LatticeXP2 Standard
Pin 2-3
J16-2
J16-3
J16-8
J16-7