rtd cpuModule CMC6686GX, User Manual

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0A 1. Initialize the first 32 interrupt vectors with corresponding Interrupt handlers Initialize
INT no from 33-120 with Dummy(Spurious) Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM specific)
0B 1. Verify the RTC time is valid or not
2. Detect bad battery
3. Read CMOS data into BIOS stack area
4. PnP initialization including (PnP BIOS only)
-Assign CSN to PnP ISA card
-Create resource map from ESCD
5. Assign IO & Memory for PCI devices (PCI BIOS only)
0C Initialization of the BIOS Data Area (40: 00 - 40:FF)
0D 1. Program some of the Chipset's value according to Setup. (Early Setup Value Program)
2. Measure CPU speed for display & decide the system clock speed
3. Video initialization including Monochrome, CGA, EGA/VGA. If no display device
found, the speaker will beep which consists of one single long beep followed by two
short beeps.
0E 1. Initialize the APIC (Multi-Processor BIOS only)
2. Test video RAM (If Monochrome display device found)
3. Show messages including:-Award Logo, Copyright string, BIOS Date code & Part
No.
-OEM specific sign on messages
-Energy Star Logo (Green BIOS ONLY)-CPU brand, type & speed
-Test system BIOS checksum (Non-Compress Version only)
0F DMA channel 0 test
10 DMA channel 1 test
11 DMA page registers test
12-13 Reserved
14 Test 8254 Timer 0 Counter 2.
15 Test 8259 interrupt mask bits for channel 1
16 Test 8259 interrupt mask bits for channel 2
17 Reserved
19 Test 8259 functionality
30 Detect Base Memory & Extended Memory Size
31 1. Test Base Memory from 256K to 640K
2. Test Extended Memory from 1M to the top of memory
32 1. Display the Award Plug & Play BIOS Extension message (PnP BIOS only)
2. Program all onboard super I/O chips (if any) including COM ports, LPT ports, FDD
port according to setup value
41 Initialize floppy disk drive controller
42 Initialize Hard drive controller
RTD Enhanced Award BIOS POST Codes