D-Link DGE-560SX User Guide
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registers to perform network functions such as sending and receiving information. A test
failure indicates that the adapter may not be working properly.
MII Registers
This test verifies the read and write capabilities of the registers of the physical layer (PHY).
The physical layer is used to control the electrical signals on the wire and to configure network
speeds such as 1000 Mbit/s.
EEPROM
This test verifies the content of the electrically erasable programmable read-only memory
(EEPROM) by reading a portion of the EEPROM and computing the checksum. The test fails if
the computed checksum is different from the checksum stored in the EEPROM. An EEPROM
image upgrade does not require a code change for this test.
Internal Memory
This test verifies that the internal memory of the adapter is functioning properly. The test
writes patterned values to the memory and reads back the results. The test fails if an
erroneous value is read back. The adapter cannot function if its internal memory is not
functioning properly.
On-Chip CPU
This test verifies the operation of the internal CPUs in the adapter.
Interrupt
This test verifies that the Network Device Driver Interface Specification (NDIS) driver is able
to receive interrupts from the adapter.
LoopBack MAC
This test verifies that the NDIS driver is able to send packets to and receive packets from the
adapter.
LoopBack PHY
This test verifies that the NDIS driver is able to send packets to and receive packets from the
adapter.
