Technical data

5-28 PROM Monitor
5.7.2 IP19 LED Error Codes
Table 5-6 lists the IP19 board power-on test failure LED codes.
LSB X X X O O X MSB PLED_CKSCACHE2 (39) - Checking secondary data cache
writeback mechanism.
LSB O O O X O X MSB PLED_CKBT (40) - Check the bus tags.
LSB X O O X O X MSB PLED_BTINIT (41) - Clearing the bus tags.
LSB O X O X O X MSB PLED_CKPROM (42) - Checksumming the I/O PROM.
LSB X X O X O X MSB PLED_INSLAVE (43) - This CPU is entering slave mode.
LSB O O X X O X MSB PLED_PROMJUMP (44) - Jumpering to the I/O PROM.
LSB X O X X O X MSB PLED_SLAVEJUMP (45) - A slave is jumping to the IO4 PROM
slave code.
LED Pattern Displayed
X=Lit
O=Unlit
Description (Flashing Value Displayed)
LSB O X X X O X MSB FLED_CANTSEEMEM (46) - Flashed by slave processors if
they take an exception while trying to write their evconfig
entries. Often means that processor is getting D-chip parity
errors.
LSB X X X X O X MSB FLED_NOUARTCLK (47) - The CC UART clock is not
running. No System Controller access possible.
LSB O O O O X X MSB FLED_INPOSSIBLE1 (48) - System fell through an
unreturning subroutine (shouldn’t be possible).
LSB X O O O X X MSB FLED_DEADCOP1 (49) - Coprocessor 1 is dead (no error does
not mean coprocessor is good).
LSB O X O O X X MSB FLED_CCCLOCK (50) - Cache controller (CC) clock is not
running.
LSB X X O O X X MSB FLED_CCLOCAL (51) - Failed CC local register tests.
LSB O O X O X X MSB FLED_CCCONFIG (52) - Failed CC config register tests.
LSB X O X O X X MSB FLED_ACHIP (53) - Failed A chip register tests.
LSB O X X O X X MSB FLED_BROKEWB (54) - By the time this CPU arrived at
bootmaster arbitration barrier, the rendezvous time had
passed. CPU is running too slowly, the ratio of the bus clock
rate to CPU clock rate is too high, or a bit in the CC clock is
stuck on.
Table 5-6 IP19 Board Power-on Test Failure LED Codes
LED Pattern Displayed
X=Lit
O=Unlit
Description
(Constant Value Displayed)
Table 5-5 (continued) IP19 Board Test Status LED Codes