Foxconn C51XEM2AA-8EKRS2H - Manual (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
register is on. Test 8259 Force an
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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