PCI 9080
I
2
O Compatible PCI Bus Master I/O Accelerator Chip
Features
s
PCI
Version 2.1 compliant
Bus Master interface chip for
adapters and embedded
systems
local bus
supports nonmultiplexed
32-bit address/data, multi-
plexed 32- or 16-bit, and
accesses of 32-, 16-, or 8-bit
local bus devices
s
Programmable
2O
compatible messaging unit
s
3.3 or 5 volt PCI signaling,
5 volt core, low-power
CMOS in 208-pin PQFP
s
Two
s
I
independent program-
mable DMA channels for local
bus memory to/from PCI host
bus data transfers
programmable FIFOs
for zero wait state burst
operation
to/from local data
transfers up to 133MB/sec
bus runs asynchro-
nously to the PCI bus
32-bit mailbox and two
32-bit doorbell registers
Big Endian/Little
Endian conversion
compatibility with
PCI 9060, 9060ES, 9060SD
s
Eight
s
PCI
s
Local
Flexible Connection to the PCI Bus
For add-in card and embedded system designers and integrators alike, the mis-
sion is clear: reduce the time to integrate new technology and time to market.
Achieving this task requires the latest in I/O technology. PLX Technology, Inc.
is committed to providing complete and proven PCI solutions with our PCI 9080
Bus Master I/O Accelerator interface chip.
The PLX
®
PCI 9080 provides a compact, high performance PCI bus master
interface with a programmable local bus. Integrating the latest in I/O technology,
the PCI 9080 contains an Intelligent I/O (I2O) messaging unit in hardware that
allows high performance and compatible software implementations of the I2O
bus protocol specification.
The highly flexible local bus solution can be configured to directly connect a
wide variety of processors, controllers and memory subsystems. Combined with
the PCI 9080RDK reference design kits, PCI SDK and I2O software development
kits available from PLX, the design-in process is simple and painless with little or
no glue logic. Customers are using the PCI 9080 with IBM PowerPC 40x, Motorola
MPC850/860, Intel i960C/J/H, Hitachi Super H, MIPS R 3000/4000/5000, NEC
V830/831, ARM, Motorola 68XXX, and others. Thoroughly tested and proven,
PLX products have become the gold standard of the industry.
Leading the way in PCI design, the PCI 9080 provides two intelligent DMA
channels with scatter/gather, programmable burst modes, and asynchronous
bus clocks to provide the best PCI throughput available. The versatility of the
PCI 9080 also allows for a local processor to configure other PCI devices in
the system.
While the PCI 9080 is capable of keeping up with the most demanding of
applications and the latest in technology, upward compatibility with existing
PLX PCI I/O accelerators is maintained. The 9080 continues the PLX tradition of
providing the highest performance and fully compatible PCI interface solutions.
s
Eight
s
Performs
s
Upward
T E C H N O L O G Y
®
PLX [ PLX TECHNOLOGY ]
