Technical data

3-4 Computer Group Literature Center Web Site
Test Descriptions
3
DEC - Ethernet Controller Tests
These sections describe the individual DEC21x4x Ethernet Controller
tests.
The firmware now provides support for testing of multiple Ethernet
controllers within PCI configuration space. This means that the DEC
diagnostics can now be run on multiple DEC Controllers. This is “only”
true for any firmware supported DEC21x4x Ethernet devices.
Examples of where DEC tests run on multiple controllers include:
1. On a PowerPC that has two (2) DEC21x4x devices on the board.
2. On a PowerPC board that has one (1) DEC21x4x device on the
board and one (1) DEC21x4x device on the board and one
DEC21x4x PMC/PCI card attached to the board.
3. On a PowerPC board that has one (1) DEC21x4x device on the
board and a DEC21x4x card attached to a PMC carrier plugged into
the backplane of the chassis.
Entering DEC without parameters causes all DEC tests to run in the order
shown in the table below, except as noted.
To run an individual test, add that test name to the DEC command.
The individual tests are described in alphabetical order on the following
pages.
Table 3-3. DEC Test Group
Name Description
REGA Register Access
XREGA Extended Register Access
SPACK Single Packet Transmit and Receive
ILR Interrupt Line Register Access
ERREN PERREN and SERREN Bit Toggle
IOR I/O Resource Register Access