User`s manual

.NETRD .NETWR
5-33
5
Field descriptions:
Controller LUN Logical Unit Number (LUN) of controller to use
Device LUN Logical Unit Number of device to use
Status Word This status word reßects the result of the operation.
It is zero if the command completed without
errors. Refer to Appendix H for meanings of
returned error codes.
Data Transfer
Address
Address of buffer in memory. On a read, data is
read to (received to) starting at this address. On a
write, data is written (sent) starting at this address.
Length of
Transfer
The number of bytes from the data transfer
address to transfer. A length of 0 speciÞes to
transfer the entire Þle on a read. On a write the
length must be set to the number of bytes to
transfer.
Byte Offset The offset into the Þle on a read. This permits users
to wind into a Þle.
Transfer Time The number of seconds that elapsed for the period
of the data transfer. This Þeld is status only and
will be updated only on a successful data transfer.
Transfer
Byte Count
This Þeld is status only and will be updated only
on a successful data transfer. If the length of
transfer Þeld is set to a non-zero value on a read
and the desired Þle is smaller than the desired
length, the length will be written to the actual
number of bytes transferred, up to the desired
length.
Boot Filename
String
The name of the Þle to load/store. On a write the
Þle must exist on the host system and also be
writable (write permission). The Þlename string
must be null terminated. The maximum length of
the string is 64 bytes inclusive of the null
terminator.