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CS8920 Technical Reference Manual
4) Select “Diagnostics” (ALT-G) from
the main menu.
•
Select “Self-Test” to test the
adapter’s basic functionality.
•
Select “Network Test” to test the
network connection and cabling.
4.2.3.1 Diagnostic Self-Test
The diagnostic self-test checks the
adapter’s basic functionality as well as
its ability to communicate across the
ISA bus based on the system resources
assigned during hardware configuration.
The following tests are performed:
•
IO Register Read/Write Test
The IO Register Read/Write test
insures that the CS8920 can be
accessed in IO mode, and that the IO
base address is correct.
•
Shared Memory Test
The Shared Memory test insures the
CS8920 can be accessed in memory
mode and that the range of memory
addresses assigned does not conflict
with other devices in the system.
•
Interrupt Test
The Interrupt test insures there are no
conflicts with the assigned IRQ
signal.
•
DMA Channel Test
The DMA channel test insures there
are no conflicts with the assigned
DMA channel.
•
EEPROM Test
The EEPROM test insures the
EEPROM can be read.
•
Chip RAM Test
The Chip RAM test insures the 4K of
memory internal to the CS8920 is
working properly.
•
Internal Loop-back Test
The Internal Loop Back test insures
the adapter’s transmitter and receiver
are operating properly. If this test
fails, make sure the card is properly
attached to the network (check for
LED activity for example).
•
Boot PROM Test
The Boot PROM test insures the
Boot PROM is present and can be
read. Failure indicates the Boot
PROM was not successfully read due
to a hardware problem or due to a
conflicts on the Boot PROM address
assignment. (Test only applies if the
adapter is configured to use the Boot
PROM option.)
Failure of a test item indicates a possible
system resource conflict with another
device on the ISA bus. In this case, you
should use the Manual Setup option to
reconfigure the adapter by selecting a
different value for the system resource
that failed (see section 4.2.2).
4.2.3.2 Diagnostics Network Test
The Diagnostic Network Test verifies a
working network connection by
transferring data between two CS8920
adapters installed in different PCs on the
same network. (Note: the diagnostic
network test should not be run between
two nodes across a router.)
This test requires that each of the two
PCs have a CS8920 card installed and
Summary of Contents for LAN CS8920
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