ITX-i9453 User’s Manual
BIOS
57
3.16 Award BIOS Post Codes
CFh Test CMOS read/write functionality
C0h Early chipset initialization: Disable shadow RAM, L2 cache (socket 7
and below), program basic chipset registers
C1h Detect memory: Auto detection of DRAM size, type and ECC, auto
detection of L2 cache (socket 7 and below)
C3h Expand compressed BIOS code to DRAM
C5h Call chipset hook to copy BIOS back to E000 & F000 shadow RAM
01h Expand the Xgroup codes located in physical memory address 1000:0
02h Reserved
03h Initial Superio_Early_Init switch
04h Reserved
05h Blank out screen; Clear CMOS error flag
06h Reserved
07h Clear 8042 interface; Initialize 8042 self test
08h Test special keyboard controller for Winbond 977 series Super I/O
chips; Enable keyboard interface
09h Reserved
0Ah
Disable PS/2 mouse interface (optional); Auto detect ports for
keyboard & mouse followed by a port & interface swap (optional);
Reset keyboard for Winbond 977 series Super I/O chips
0Bh Reserved
0Ch Reserved
0Dh Reserved
0Eh Test F000h segment shadow to see whether it is read/write capable or
not. If test fails, keep beeping the speaker
0Fh Reserved
10h Auto detect flash type to load appropriate flash read/write codes into
the run time area in F000 for ESCD & DMI support
11h Reserved
12h Use walking 1’s algorithm to check out interface in CMOS circuitry.
Also set real time clock power status and then check for overrride
13h Reserved
14h Program chipset default values into chipset. Chipset default values
are MODBINable by OEM customers
15h Reserved
16h Initial Early_Init_Onboard_Generator switch
17h Reserved
18h Detect CPU information including brand, SMI type (Cyrix or Intel) and
CPU level (586 or 686)
19h Reserved
1Ah Reserved
1Bh
Initial interrupts vector table. If no special specified, all H/W
interrupts are directed to SPURIOUS_INT_HDLR & S/W interrupts to
SPURIOUS_soft_HDLR
1Ch Reserved
1Dh Initial EARLY_PM_INIT switch
1Eh Reserved
1Fh Load keyboard matrix (notebook platform)
Содержание ITX-i9453
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