HP Vectra Technical Reference Manual page 337

8.2.20 Intra-application Communications Area
364
8.2.21 Print Screen Status
364
8.2.22 DOS Data Area
365
8.2.23 Reserved Data Areas
365
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B.3 EX-BIOS Data Area Map
365
8.3.1 Option ROM Data Segments
367
B.3.2 EX-BIOS Global Data Area
367
B.4 ROM BIOS Memory Map
369
B.5 Product Identification
370
C. CMOS MEMORY LAYOUT AND
REAL-TIME CLOCK
371
C.1 Real-Time Clock/CMOS Access
372
C.2 Real-Time Clock (CMOS Address OOH-ODH)
373
C.3 Diagnostic Status Byte (CMOS Address OEH)
375
C.4 System Shutdown Byte (CMOS Address OFH)
375
~
C.5 Diskette Descriptor Byte (CMOS Address 10H)
376
C.6 CMOS Fixed Disc Type (CMOS Address 12H)
377
C.7 Equipment Byte (CMOS Address 14H)
377
C.8 System Base RAM Size
(CMOS Address 15H-16H)
377
C.9 System Extended Memory Size
(CMOS Address 17H-18H)
378
C.10 EX-BIOS Checksum Byte (CMOS Address 28H)
379
C.11 EX-BIOS Reserved Bytes (CMOS Address 29H-2CH)
379
C.12 STD-BIOS Checksum Word
(CMOS Address 2EH-2FH)
380
~
C.13 Test Information Byte (CMOS Address 33H)
380
D. I/O Port Map
381
D.1 DMA Channel Controller
382
328 Appendices