Crystal LAN CS8920, Техническое справочное руководство, Страница: 7 / 67

AN84REV1 7
CS8920 Technical Reference Manual
The hardware design considerations for
both motherboards and adapter cards are
discussed in Chapter 2.0. The EEPROM
programming considerations are described
in Chapter 3.0. The current CS8920 data
sheet can be found in section 6.0.
Crystal provides a complete set of device
drivers, as discussed in Chapter 4.0. The
drivers reside between the networking
operating system (NOS) and the CS8920.
On the CS8920 side, the drivers understand
how to program and read the CS8920
control and status registers, and how to
transfer user data between the CS8920 and
the PC main memory via the ISA bus. On
the NOS side, the drivers provide the
standardized services and functions
required by the NOS, and hide all details of
the CS8920 hardware from the NOS. The
EEPROM device programs the CS8920
whenever a hardware reset occurs, and call
also store state/configuration information
for the driver.
Crystal’s Software Driver Distribution
Policy is as follows. This developer kit
contains a single-user copy of object code
which is available only for internal testing
and evaluation purposes. This object code
may not be distributed without first signing
a LICENSE FOR DISTRIBUTION OF
EXECUTABLE SOFTWARE, which may
be obtained by contacting your sales
representative. The LICENSE FOR
DISTRIBUTION OF EXECUTABLE
SOFTWARE gives you unlimited, royalty-
free rights to distribute Crystal-provided
object code.
The drivers supported are shown in Table
1.1.
O p e r a t in g S y s t e m S o f t w a r e
e .g . , F ile M a n a g e r
C S 8 9 2 0 R e g is t e r s & M e m o r y
C S 8 9 2 0 - s p e c if ic d e v ic e d r iv e r s :
e .g . , N D I S & O D I c o m p a t ib le d r iv e r s
N e tw o r k O p e r a t in g S y s t e m
e . g . , N o v e ll o r M ic r o s o f t
A p p lic a tio n s
E E P R O M
Figure 1.2 - Software Application Su mmary