User`s guide

74 DC 900-1516D
ICP2432 User’s Guide for OpenVMS Alpha (DLITE Interface)
Description
The driver accesses user virtual address space (specified by the P1 parameter) to access
the packet. The packet must be set on a longword boundary.
The read and write node numbers are used for communication between the driver and
the ICP2432. The node numbers decide the source and destination of messages. Allow-
able values are 1 through 126. The read node number of P4 is bit 0 through bit 7. The
write node number of P4 is bit 8 through bit 15. See Section 4.1.2.4 on page 60 for more
information about node numbers.