Network Operation
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Connector type describes the type of Ethernet media
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OS optimization describes the performance option selected:
−
DOS - maximize ethernet throughput, with no attempt to minimize CPU utilization or
number of interrupts.
−
Windows / server - Selects a configuration which minimizes the number of interrupts
generated by the CS8900, with no attempt to maximize ethernet throughput.
Diagnostics / Self test screen
This function tests the adapter based on the settings that the user has assigned, either from auto
configuration or manual configuration screen. System resources availability can be ckecked by
running this test. Adjustment to the setup should be manually made it the diagnostics fail.
Failure upon test items such as I/O, IRQ, DMA and MEM indicate the conflict with other devices on
the bus. In this case, the user is prompted to use manual configuration screen to eliminate those
conflicts.
The tests are run once when the function is entered. The user can then chose to repeat the test by
selecting REPEAT.
The I/O register read/write test insures that the CS8900 can be accessed in I/O mode, and that the
I/O base address is correct. If this test fails, the I/O base address should be changed.
The EEPROM test insures that the EEPROM can be read. If the EEPROM can not be read, then the
controller should be checked exactly on the system.
The chip RAM test insures that the 4K byte memory internal to the CS8900 is working properly. If
both this test, and the shared memory test fail, then the memory base address should be modified
and this test run again. If this test fails but the shared memory test passes, then the board must be
repaired or replaced.
The shared memory test insures the memory base address doesn´t conflict with other memory
assignments in the system. If this test fails, the memory base address must be changed.
The internal loop back test insures that the controller is operating properly. If this test fails, make sure
the PC is properly attached to the network (check for LED activity for example). If network attachment
is confirmed, the card must be repaired or replaced.
The Interrupt test insures that there are no conflicts on the IRQ assignment. If this test fails the IRQ
assignment must be changed.
The DMA channel test insures that there are no conflicts on the DMA assignment. If this test fails the
DMA assignment must be changed.
The boot PROM test insures that the Boot PROM is present, and can be read. If this test fails, the
boot PROM was not successfully read due to a hardware problem, or due to a conflict on the boot
PROM base address assignment.
Diagnostics/Network Test Screen
This function lets the user further verify the network connection by transferring data between two
PC´s. This test requires that each of two stations have a CS8900 controller installed and have
diagnostics/network Test program running. The user first sets one station to run responder, and then
sets the orther station to run initiator.
The responder stays in a loop to wait for a frame to arrive, and then sends back the same frame if the
frame was received OK. The initiator also stay in a loop that keeps feeding frames to the network and
at the same time receiving frames back from the responder. The total number of frames received and
transmitted are displayed on the screen, along with a count of the number received/transmitted OK
and the number received/transmitted in error. The test can be terminated anytime by the user at
either side.