Kontron AT8402 Diagnostics Manual - Manual (Page 17)

AT8402 Diagnostics running on the Carrier
Page 2 - 9 AT8402 CLI Reference Manual
Description
This test performs read and write accesses in turn to the two IPMC CPLD debug
registers (addresses 0x55 and 0xAA) with changing data patterns (0x00, 0xff, 0xaa and
0x55).
One hundred cycles of writes/reads with all four data patterns to both addresses are
performed, read data is checked for each access to match written data.
Access to the IPMC is performed via KCS interface.
Failure impact
•
CPLD-00020003 diagnostic code results of failure to access the IPMC through the
KCS interface. The impact is loss of applications running on carrier host processor.
This impacts at least Ethernet functionality and command line interface.
• CPLD-00020004 diagnostic code results of failure to access CPLD registers from
IPMC. The impact is failure of the board.
• CPLD-00020005 diagnostic code results of a reading of an error condition from
the CPLD. The impact is failure of the board.
2.4 Telecom Clock Protection Switch
NOTE: This part of the diagnostics is not yet implemented. The test procedure all-
ways returns “fail”
2.4.1 TELCO_SWITCH
Clock protection switch test.
Test group:
Diagnostics
Test case: telco
Test procedure: TELCO_SWITCH
Test host:
Carrier
Test IC: quickturn
Test mode: normal
Diagnostic code: TELCO-00030001
Description
Check protection switch readings for consistency.
Failure impact
•
TELCO-000030001 diagnostic code results of failure of the protection switch.
Impact is failure of telecom clock distribution.
2.5 FUM Firmware Update Manager
2.5.1 FUM_SEEPROM
Firmware update manager SEEPROM read test.
Test group:
Diagnostics
Test case: fum