SE7221BK1-ETechnical Product Specification

 

 

 

Diagnostic LED

 

Description

 

 

 

 

Decoder

 

 

 

 

 

 

 

G=Green, R=Red,

 

 

 

 

 

 

A=Amber

 

 

 

 

 

 

 

Hi

 

 

Low

 

 

 

 

 

 

 

 

 

 

 

 

 

34h

Off

G

R

R

Keyboard Init: The keyboard controller command byte is written. Next, issuing

 

 

 

the pin 23 and 24 blocking and unblocking commands

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36h

Off

G

A

R

Disable and initialize 8259

 

 

 

 

 

 

 

 

 

 

 

 

38h

G

Off

R

R

Detect Configuration Mode, such as CMOS clear.

 

 

 

 

 

 

 

 

 

 

 

 

3Ah

G

Off

A

R

Chipset Initialization before CMOS initialization

 

 

 

 

 

 

 

 

 

 

 

 

3Ch

G

G

R

R

Init System Timer: The 8254 timer test is over. Starting the legacy memory

 

 

 

refresh test next.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3Eh

G

G

A

R

Check Refresh Toggle: The memory refresh line is toggling. Checking the 15

 

 

 

second on/off time next

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40h

Off

R

Off

Off

Calculate CPU speed

 

 

 

 

 

 

 

 

 

 

 

 

42h

Off

R

G

Off

Init interrupt Vectors: Interrupt vector initialization is done.

 

 

 

 

 

 

 

 

 

 

 

 

44h

Off

A

Off

Off

Enable USB controller in chipset

 

 

 

 

 

 

 

 

 

 

 

 

46h

Off

A

G

Off

Initialize SMM handler. Initialize USB emulation.

 

 

 

 

 

 

 

 

 

 

 

 

48h

G

R

Off

Off

Validate NVRAM areas. Restore from backup if corrupted.

 

 

 

 

 

 

 

 

 

 

 

 

4Ah

G

R

G

Off

Load defaults in CMOS RAM if bad checksum or CMOS clear jumper is

 

 

 

detected.

 

 

 

 

 

 

 

 

 

 

 

4Ch

G

A

Off

Off

Validate date and time in RTC.

 

 

 

 

 

 

 

 

 

 

 

 

4Eh

G

A

G

Off

Determine number of micro code patches present

 

 

 

 

 

 

 

 

 

 

 

 

50h

Off

R

Off

R

Load Micro Code To All CPUs

 

 

 

 

 

 

 

 

 

 

 

 

52h

Off

R

G

R

Scan SMBIOS GPNV areas

 

 

 

 

 

 

 

 

 

 

 

 

54h

Off

A

Off

R

Early extended memory tests

 

 

 

 

 

 

 

 

 

 

 

 

56h

Off

A

G

R

Disable DMA

 

 

 

 

 

 

 

 

 

 

 

 

58h

G

R

Off

R

Disable video controller

 

 

 

 

 

 

 

 

 

 

 

 

5Ah

G

R

G

R

8254 Timer Test on Channel 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enable 8042. Enable timer and keyboard IRQs. Set Video Mode: Initialization

 

 

 

5Ch

G

A

Off

R

before setting the video mode is complete. Configuring the monochrome mode

 

 

 

 

 

 

 

 

and color mode settings next.

 

 

 

 

 

 

 

 

 

 

 

 

5Eh

G

A

G

R

Init PCI devices and motherboard devices. Pass control to video BIOS. Start

 

 

 

serial console redirection.

 

 

 

 

 

 

 

 

 

 

 

60h

Off

R

R

Off

Initialize memory test parameters

 

 

 

 

 

 

 

 

 

 

 

 

62h

Off

R

A

Off

Initialize AMI display manager Module. Initialize support code for headless

 

 

 

system if no video controller is detected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64h

Off

A

R

Off

Start USB controllers in chipset

 

 

 

 

 

 

 

 

 

 

 

 

66h

Off

A

A

Off

Set up video parameters in BIOS data area.

 

 

 

 

 

 

 

 

 

 

 

 

68h

G

R

R

Off

Activate ADM: The display mode is set. Displaying the power-on message next.

 

 

 

 

 

 

 

 

 

 

 

 

6Ah

G

R

A

Off

Initialize language module. Display splash logo.

 

 

 

 

 

 

 

 

 

 

 

 

6Ch

G

A

R

Off

Display Sign on message, BIOS ID and processor information.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6Eh

G

A

A

Off

Detect USB devices

 

 

 

 

 

 

 

 

 

 

 

 

70h

Off

R

R

R

Reset IDE Controllers

 

 

 

 

 

 

 

 

 

 

 

 

72h

Off

R

A

R

Displaying bus initialization error messages.

 

 

 

 

 

 

 

 

 

 

 

 

74h

Off

A

R

R

Display Setup Message: The new cursor position has been read and saved.

 

 

 

Displaying the Hit Setup message next.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

76h

Off

A

A

R

Ensure Timer Keyboard Interrupts are on.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66

 

 

 

 

Revision 1.3

 

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Intel manual SE7221BK1-ETechnical Product Specification