3
LXT970A NIC Demo Board Equipment Setup
Hardware Setup
The LXT970A NIC Demo Board can be configured for
(4-bit) Nibble Mode (Normal MII operation) or (5-bit)
Symbol Mode operation. Set jumpers (JP2 - JP9) for the
desired operating mode as shown in Table 1.
Hardware Installation
The LXT970A NIC Demo Board is designed to plug
directly into any PC. Basic instructions for installation and
network connection are as follows:
• Take the cover off the PC chassis.
• Install the LXT970A NIC Demo Board into an empty
PCI slot (Note: The PC must be turned OFF when
installing or removing the LXT970A NIC Demo
Board).
• Connect the LXT970A NIC Demo Board to the
Novell Network using CAT 5 Ethernet cable via the
RJ45 connector.
• Connect the metal shield of the RJ45 connector to
chassis ground. (This is required for ESD or EMI
testing.
• Turn ON the PC and verify the drivers are loaded
properly (If a problem occurs check the jumper
settings and the “Startnet.bat” and “net.cfg” files).
LED Indicators
There are 6 status LEDs on the LXT970A NIC Demo
Board. Refer to Table 2 for LED descriptions.
Table 1:
LXT970A NIC Jumper Setup
Mode
Selection
Jumpers
Jumper Pin
Placement
Nibble Mode
JP2
Pins 2 and 3
(Normal MII
JP3
Operation)
JP4
(4-bit)
JP5
JP6
JP7
JP8
Pins 1 and 2
JP9
Pins 5 and 6
Pins 15 and 16
Pins 23 and 24
Pins 31 and 32
Pins 39 and 40
Symbol Mode
JP2
Pins 1 and 2
(5-bit)
JP3
JP4
JP5
JP6
JP7
Pins 2 and 3
JP8
Pins 2 and 3
JP9
Pins 7 and 8
Pins 15 and 16
Pins 21 and 22
Pins 31 and 32
Pins 39 and 40
Table 2:
LED Descriptions
Label
Ref
Des
Description
ENBL
D1
Line Speed. Indicates 100Mbps
operation
COL
D2
Collision. Indicates collision
LNK
D3
Link. Indicates connection
TX
D4
Transmit Data. Indicates data
being transmitted
RX
D5
Receive Data. Indicates data
being received
DPX
D6
Duplex. Indicates Half Duplex
operation.
