User Guide

File No. 960-140
1-18
Table 2-3 Printer port LED boot mode status (1/5)
LED Status Test item Message
FFh
Start Register initialization for boot block
B0h
Flash ROM check PIT ch.0 initialization
BIOS rewrite flag initialization
Transition to protected mode
Boot block checksum
KBC initialization
BIOS (runtime and IRT) checksum
B2h
KBC initialization (1) KBC initialization
B3h
BIOS rewrite BIOS rewrite request check
Canceling power down of L2-cache
Enabling CMOS access
Port 25h unlock
00h
Special register initialization Toshiba register initialization (1)
Toshiba register initialization (2)
01h
Memory check DRAM size check
Memory structure configuration
SM-RAM stack area test
05h
CMOS check and initialization
Enabling cache
ROM to RAM copy CMOS access test
CMOS checksum
CMOS data initialization
Set DRAM size
Resume branch check
CMOS error check
Resume status check
SM-RAM checksum
System BIOS checksum
Toshiba register initialization (3)
Set SM-RAM base address
Grant SMI
KBC initialization