Acer Aspire 7230, Service Manual

Page: 164 / 208

154 Chapter 4
0x6A Display external cache size on the screen if it is non-
zero. LBT Core
0x6C Display shadow message LBT Core
0xCA post EISA init LBT Core
0x70 Check flags in CMOS and in the TrustedCore data
area for errors detected during POST. Display error
messages on the screen. LBT Core
0x72 Check status bits to see if configuration problems
were detected. If so, display error messages on the
screen. LBT Core
0x4F Initialize MultiBoot. Allocate memory for old and new
MultiBoot history tables. LBT Core
0xCD Reclaim console vector after HW vectors initialized. LBT Core
0x7D Initialize Intelligent System Monitoring. LBT Core
0x7E The Coprocessor initialization test. Use the floating
point instructions to determine if a coprocessor
exists instead of the ET bit in CR0. LBT Core
0xC1 Check Boot Type (Server BIOS) LBT Core
0x80 Disable onboard COM and LPT ports before testing
for presence of external I/O devices. LBT Core
0xCA Redirect Int 15h to enable target board to use remote
keyboard (PICO BIOS). LBT Core
0x88 Initialize interrupt controller. LBT Core
0x81 Run late device initialization routines. LBT Core
0x87 Initialize motherboard configurable devices. LBT Core
0x85 Display any ESCD read errors and configure all PnP
ISA devices. LBT Core
0x82 Test and identify RS232 ports. LBT Core
0x84 Test and identify parallel ports. LBT Core
0x86 Initialize onboard I/O and BDA according to CMOS
and presence of external devices. LBT Core
0x83 Configure Fisk Disk Controller. LBT Core
0xCE Initialize digitizer device and display installed
message if successful. LBT Core
0x89 Enable non-maskable interrupts. LBT Core
0x8C Initialize both of the floppy disks and display an error
message if failure was detected. Check both drives
to establish the appropriate diskette types in the
TrustedCore data area LBT Core
0xCB Redirect Int 13h to Memory Technologies Devices
such as ROM, RAM, PCMCIA, and serial disk (PICO
BIOS). LBT Core
0xCD Remap I/O and memory address space for PCMCIA
(PICO BIOS). LBT Core
0x90 Initialize hard-disk controller. If the CMOS ram is
valid and intact, and fixed disks are defined, call the
fixed disk init routine to initialize the fixed disk
system and take over the appropriate interrupt
vectors. LBT Core
POST Code Function Phase Component