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Chapter 4 36
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 PURIOUS_soft_HDLR.
1Ch Reserved
1Dh Initial Early_PM_INIT switch.
1Eh Reserved
1Fh Load keyboard matrix (notebook platform)
20h Reserved
21h HPM initialization (notebook platform)
22h Reserved
3Ch Test 8254.
3Dh Reserved
3Eh Test 8259 interrupt mask bits for channel 1
3Fh Reserved
40h Test 8259 interrupt mask bits for channel 2
41h Reserved
42h Reserved
43h Test 8259 functionality
44h Reserved
45h Reserved
46h Reserved
47h Initialize EISA slot
48h Reserved
49h 1. Calculate total memory by testing the last double word of each 64K.
2. Program writes allocation for AMD K5 CPU.
4Ah Reserved
4Bh Reserved
Checkpoint Description