Owner`s manual

(which would result in serial access to each memory module). Interleaving
causes a number of memories to operate in parallel.
Memory node
Also called the MS65A. Memory is a global resource equally accessible by
all processors on the XMI. See also MS65A.
Module
A single XMI or VAXBI card that is housed in a single slot in its respective
card cage. XMI modules (11.02" x 9.18") are larger than VAXBI modules
(8.0" x 9.18").
MS65A
XMI memory array; a memory subsystem of the XMI. Memory is a global
resource equally accessible by all processors on the XMI. A memory module
can have 32, 64, or 128 Mbytes of memory, consisting of MOS 1–Mbit or
MOS 4–Mbit dynamic RAMs, ECC logic, and control logic.
Node
An XMI node is a single module that occupies one of the 14 logical and
physical slots on the XMI bus. A VAXBI node consists of one or more
VAXBI modules that form a single functional unit.
Node ID
A hexadecimal number that identifies the node location. On the XMI bus,
the node ID is the same as the physical location. On the VAXBI, the source
of the node ID is an ID plug attached to the backplane.
Pended bus
A bus protocol in which the transfer of command/address and the transfer
of data are separate operations. The XMI bus is a pended bus.
Primary processor
See Boot processor.
Processor node
A VAX processor that contains a central processor unit (CPU), executes
instructions, and manipulates data contained in memory.
RBD
ROM-based diagnostics.
Glossary–4