2. Sixteen bytes in
address space (EISA
specific)
3. 64KB in memory address space, non-cached.
(Note that although the LNE390 provides
32KB of shared
64KB memory
addresses are used by each board.)
The software driver communicates to the
by loading
and storing data packets to and from the 32KB shared mem-
ory. The management and allocation of the shared memory
under the control of the host program.
In the case of a transmission, the
then uses
instruc-
tions to instruct the
to send the data packet. The
then runs
and will attempt to transmit
the packet up to 16 times. Upon completion or error, the
LNE390 then
the host processor,
can then
read status
and then handle the resulting condition,
For data reception, the software driver programs the
indicating the appropriate buffer memory addresses for data
packet reception. When a data packet is received, the
interrupts the host, and can then respond to the
received data packet.
Scope This Document
The manual assumes the reader is familiar wlth normal ISA
and
style computer operating procedures, and familiar
with the particular operating systems to be used. The proce-
dures detailed will enable the user to install the
In any
host system with any of the supported operating sys-
tems.
1992
