Bit Position
|
Meaning if Set
|
Bit 0 |
Reserved |
Bit 1 |
Reserved |
Bit 2 |
Unknown |
Bit 3 |
BIOS Characteristics Not Supported |
Bit 4 |
ISA is supported |
Bit 5 |
MCA is supported |
Bit 6 |
EISA is supported |
Bit 7 |
PCI is supported |
Bit 8 |
PC Card (PCMCIA) is supported |
Bit 9 |
Plug and Play is supported |
Bit 10 |
APM is supported |
Bit 11 |
BIOS is Upgradeable (Flash) |
Bit 12 |
BIOS shadowing is allowed |
Bit 13 |
VL-VESA is supported |
Bit 14 |
ESCD support is available |
Bit 15 |
Boot from CD is supported |
Bit 16 |
Selectable Boot is supported |
Bit 17 |
BIOS ROM is socketed |
Bit 18 |
Boot From PC Card (PCMCIA) is supported |
Bit 19 |
EDD (Enhanced Disk Drive) Specification is supported |
Bit 20 |
Int 13h - Japanese Floppy for NEC 9800 1.2mb (3.5 in, 1k Bytes/Sector,
360 RPM) is supported
|
Bit 21 |
Int 13h - Japanese Floppy for Toshiba 1.2mb (3.5 in, 360 RPM)
is supported
|
Bit 22 |
Int 13h - 5.25 in / 360 KB Floppy Services are supported |
Bit 23 |
Int 13h - 5.25 in /1.2MB Floppy Services are supported |
Bit 24 |
Int 13h - 3.5 in / 720 KB Floppy Services are supported |
Bit 25 |
Int 13h - 3.5 in / 2.88 MB Floppy Services are supported |
Bit 26 |
Int 5h, Print Screen Service is supported |
Bit 27 |
Int 9h, 8042 Keyboard services are supported |
Bit 28 |
Int 14h, Serial Services are supported |
Bit 29 |
Int 17h, Printer Services are supported |
Bit 30 |
Int 10h, CGA/Mono Video Services are supported |
Bit 31 |
NEC PC-98 |
Bit 32 |
-47Reserved |
Bit 48 |
Built-in NIC supports Magic Packet |
Bit 49 |
System supports Wake-on-LAN |
Bit 50 |
System supports chassis intrusion |
Bit 51 |
Built-in NIC supports pattern-matching |
Bit 52 |
System BIOS supports a 7-character service tag |
Bit 53 |
-63 Reserved |