Ncr 53C810 Pci-Scsi I/O Processor Tests - DEC Digital Alpha VME 4/224 User Manual

NCR 53C810 PCI-SCSI I/O Processor Tests

NCR 53C810 PCI-SCSI I/O Processor Tests
These tests check the NCR810 SCSI controller chip. The tests do not require a
drive to be attached to the SCSI port and are meant to be a power-on check of the
NCR810 chip's low-level modes through programmed I/O issued from the CPU.
There are no NCR810 scripts executing during these tests.
All tests set up the diagnostic support environment, allocate memory, set up the
PCI configuration registers, and check for the default values in the command
/status registers as defined by the NCR810 53C810 chip specification (SW Fail
point 1,2).
If any of these tests fail, the console SCSI driver does not restart after the
test. This causes SCSI devices connected to the system to be removed
from the device list, and any attempts to run the disk exerciser or
boot from a disk fails. (The command show device lists the currently
installed devices.)
NCR810 PCI Configuration Register Test
This test prints the current setting of the NCR810 PCI configuration registers to
the console screen using a formatted output.
Console Command: ncr810_diag -t 1
Command Option:
Print the config register if -np option is NOT specified.
NCR810 Command/Status Register Dump
This test displays the contents of all of the command/status registers on your
screen. No test of the contents is performed.
Console Command: ncr810_diag -t 2
Command Option:
Print the config register if -np option is NOT specified.
4–24 Diagnostics
Note