Devices On The Isa Bus; Super I/O Controller - HP Vectra VE5 4 Technical Reference Manual

Devices on the ISA Bus

ISA Device
Super I/O
X Ben (HP ASIC)

Super I/O Controller

The Super I/O chip (NS87317) is part of the chip set, and is described on
page 20.
The computer is supplied with a Logitech 2-button mouse, and a keyboard
with the following features:
Space bar power on, to start the computer from the Off state (if
is enabled in the Setup program).
from keyboard
Windows key (next to the
clicking the "Start" button on the Windows 95 task bar.
Pull-down key (next to the right
clicking the right mouse button.
Serial EEPROM
The computer uses 4 Kbit of Serial EEPROM implemented within a single
512 K 8-bit ROM chip. Serial EEPROM is ROM in which one byte at a time
can be returned to its unprogrammed state by the application of appropriate
electrical signals. In effect, it can be made to behave like very slow, non-
volatile RAM. It is used for storing the tatoo string, the serial number, and
the parameter settings for the Setup program.
When installing a new system board, the Serial EEPROM will have a blank
serial number field. This will be detected automatically by the BIOS, which
will then prompt the user to enter the serial number which is printed on the
identification label on the back of the computer.
Index Data
2Eh 2Fh
496h 497h
keys), which has the same effect as
key), which has the same effect as
2 System Board
Devices on the ISA Bus
power on
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