V96SSC
HIGH INTEGRATION
SYSTEM CONTROLLER
For i960® Jx/Sx and PowerPC 401™ Gx Processors
Glueless interface between Intel®
i960® Jx/Sx series and IBM®
PowerPC 401™ Gx processors,
DRAM arrays, and peripheral
devices
Local bus speeds up to 33 MHz
High performance burst DRAM
controller with DRAM page cache
management
Synchronous/asynchronous serial
communications unit
Two-channel y-by DMA controller
Support for boot PROM devices
System heartbeat and watchdog
timers
Interrupt control unit
Up to ve programmable chip
select/peripheral device
strobe generation
Two 32-bit general purpose timers
with pulse width modulation
capability
Supports 32-bit bus masters
Supports extended burst
transactions, up to 1 Kbyte
16 general-purpose I/Os
Supports 3.3 V DRAM modules
Industrial temperature range
(−40°C to +85°C)
Low-cost 100-pin EIAJ PQFP
package
The V96SSC High Integration System Controller simplies the design of systems based
on Intel’s i960® Jx/SX and IBM’s PowerPC 401™ Gx microprocessors. By using the
V96SSC, designers can replace many lower-integration support components with a single,
high-integration device—this saves design time, board area, and manufacturing cost.
The integrated DRAM controller directly connects the supported i960®/PowerPC 401™
processor to DRAM arrays ranging from 128 Kbyte to 128 Mbyte. The fully programmable
DRAM controller allows use of a wide range of DRAM speeds and congurations. It
supports burst accesses up to 1 Kbyte in length, allowing the use of high-performance,
bus-mastering peripherals.
The two-channel y-by DMA controller makes it easy to use less expensive, non-mastering
peripherals. To further aid in connecting the processor, the V96SSC’s I/O Controller
performs address decoding and chip-select/strobe generation. In addition, the I/O lines can
be used as simple I/O ports on a bit-by-bit basis. The serial communications unit connects
to either RS-232 or synchronous serial devices.
The two general-purpose, 32-bit timers can be individually congured as a pulse width
modulator or used in other modes, such as retriggering or one-shot. The bus watch timer
prevents system hangs during accesses to unpopulated memory. Interrupts for a real-time
OS are generated easily by the system heartbeat timer. A watchdog timer is also provided
for graceful recovery from catastrophic program failures.
Interrupt requests for all on-chip peripherals are managed by the Interrupt Control Unit
(ICU). Additionally, off-chip interrupts can be routed via the I/O multiplexer to the ICU.
The V96SSC is packaged in a low-cost 100-pin EIAJ Plastic Quad Flat Pack (PQFP), and is
available in a 33 MHz speed grade.
© 2000 V3 Semiconductor Corp. V3 Semiconductor is a registered trademark of V3 Semiconductor Corporation.
All other trademarks/registered trademarks are the property of their respective owners.
V3 Semiconductor retains the right to make changes to the documentation, specication, or component without notice.
TB-SC01-0200
V96SSC
Networking
Device
PROM
DRAM
Array
V350EPC
PCI Bridge
Controller
Local Bus
PCI Bus
Chip Selects and Strobes
DMA Request
i960 CPU
®
Development Tools
To help accelerate development
and reduce time-to-market,
V3 Semiconductor provides sim-
ulation models, software tools,
reference designs, and evaluation
boards. This allows the developer
to concentrate on product differen-
tiation.
V3 Semiconductor offers a unique,
interactive technical support
system. V3Help assists designers
with the challenges they face
throughout development, from ini-
tial concept through prototype and
production.
Applications of the V96SSC
• Ofce automation products
• Networking systems
V96SSC Block Diagram
COST EFFECTIVE SOLUTIONS THAT SIMPLIFY
EMBEDDED SYSTEM DESIGN
V96SSC Example Application
Product Ordering Information
V96SSC-33LPB1 V96SSC High Integration System Con-
troller, 33 MHz, 5 V
AV96JA0330420 Avalanche V96SSC Evaluation Kit
For more information, please contact:
Corporate Ofce Western U.S. Sales Ofce
250 Consumers Road, Suite 901 2348G Walsh Avenue
North York, Ontario, Canada Santa Clara, CA 95051
M2J 4V6 USA
Telephone: Telephone:
Toll Free: 1-877-283-7364 Toll Free: 1-800-488-8410
International: (416) 497-8884 Bay Area: (408) 988-1050
Fax: (416) 497-1160 Fax: (408) 988-2601
Email: V3help@vcubed.com Website: www.vcubed.com
V3info@vcubed.com
DRAM
Control
MA[11:0]
WE
CAS[3:0]
RAS[1:0]
IO[15:0]
OE[1:0]
LE
I/O MUX
DACK0
Two
Channel
DMA
Two 32-bit
Timers
Chip Select
Strobe Logic
DREQ0
DREQ1
DACK1
System
Heartbeat/
Watchdog
Timers
Serial
Communications
Unit
A[31,26:16]
AD[15:0]
BE[1:0]
ADS
BLAST
W/R
BTYPE[1:0]
HLDA
HOLD
INT
RSTOUT
RESET
CLK2
i960
Processor
Interface
BUS Watch
