Alphastation Series System Srom Code Actions - Digital Equipment Digital AlphaStation 200 Series Technical Information

AlphaStation System Firmware
Table 8-1. AlphaStation Series System SROM Code Actions
Indicator Values
Bit 7
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
l l l l
1
The filled-in circle (
8-4
1
Hex Meaning
Bit 0 Value
l l l l
FF Initialize CPU (BIU_CTL and ABOX registers
initialized).
l l l ¡
FE Initialize bank 8 logic.
Executing memory sizing code.
l l ¡ l
FD Memory sizing completed.
Configuring memory.
l l ¡ ¡
FC Memory configuration successful.
Bcache initialization started.
Initializing all memory to zeroes.
l ¡ l l
FB Bcache initialization successful.
Bcache references OFF and Dcache OFF.
Initialize the low 8MB of memory to zero.
Executing memory test 1 of 4.
l ¡ l ¡
FA Memory test 1 of 4 complete.
Executing memory test 2 of 4.
Bcache references ON and Dcache OFF.
l ¡ ¡ l
F9 Memory test 2 of 4 complete.
Executing memory test 3 of 4.
Bcache references OFF and Dcache ON.
l ¡ ¡ ¡
F8 Memory test 3 of 4 complete.
Executing memory test 4 of 4.
Bcache references ON and Dcache ON.
¡ l l l
F7 Memory test 4 of 4 complete.
¡ l l ¡
F6 Initialize the core logic registers.
¡ l ¡ l
F5 Reserved for future.
¡ l ¡ ¡
F4 Reserved for future.
¡ ¡ l l
F3 Load the DROM code into memory.
¡ ¡ l ¡
F2 DROM and flashROM corrupted
¡ ¡ ¡ l
F1 Successful load and checksum of DROM
¡ ¡ ¡ ¡
F0 Initialize registers required by console firmware
and the PAL_BASE and EXEC_ADDR registers.
l
) indicates that the LED is on, and the open circle (
¡
) indicates off.