Foxconn C51XEM2AA-8EKRS2H User Manual download pdf (Page 110)

Chapter 6 Appendix

103

Code(hex) Name Description

3C Test Timer Test 8254 Timer 0 Counter 2.

3D Reserved

3E Test 8259-1 Mask Verify 8259 Channel 1 masked

interrupts by alternately turning off

and on the interrupt lines.

3F Reserved

40 Test 8259-2 Mask Verify 8259 Channel 2 masked

interrupts by alternately turning off

and on the interrupt lines.

41 Reserved

42 Reserved

43 Test Stuck Interrupt Turn off interrupts then verify no

8259's Interrupt interrupt mask

interrupt and verify the interrupt

occurred.

44 Reserved

45 Reinit serial port Reinitialize Preboot agent serial port

46 Reserved

47 EISA Test If EISA non-volatile memory

checksum is good, execute EISA

initialization. If not, execute ISA tests

and clear EISA mode flag.

48 Reserved

49 Size Memory Size base memory from 256K to

640K and extended memory above

1MB.

4A Reserved

4B Reserved

4C Reserved

4D Reserved

4E Init APIC Initialize APIC and set MTRR

4F Reserved

50 USB init Initialize USB controller

51 Reserved

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Foxconn C51XEM2AA-8EKRS2H User Manual Page 110