Ultrasparc I Processor; Ultrasparc Ii Processor; C.1.3 Ultrasparc I Processor - Sun Microsystems Ultra 2 series Service Manual

Note – The PrestoServe™ 2.4.2 release is incompatible with the Solaris 2.5.1
software environment when running on a Sun Ultra 2 Series system. For information
about working around that problem, refer to SMCC Open Issues Supplement Solaris
2.5.1, part number 802-5340.
C.1.3

UltraSPARC I Processor

The UltraSPARC I processor is mounted on a module that is plugged into the system
unit or server motherboard. Up to two modules are supported, one CPU for each
module.
The UltraSPARC I processor has the following features:
SPARC V9 compatibility:
V9 specifies a 64-bit instruction set architecture that is compatible with the
32-bit SPARC V8 architecture.
V9 provides for 64-bit data and addressing as well as other features to enhance
operating system and application performance.
Implements 44-bit virtual address bits and 41-bit physical address bits.
Implements the visual instruction set (VIS) used by the UPA graphics device to
provide optimal graphics performance (this also includes instructions to help
with imaging performance).
Execution of up to four instructions in parallel (one memory access, two integer
ALU instructions, one floating point add class, one floating point multiply class,
and one control transfer instruction).
Each module receives a separate programmable core voltage to permit mixing of
modules with different power requirements.
Each module is thermo-coupled for temperature sensing; Ultra 2 series provides
two levels; warning and shut-down.
UltraSPARC I processor performance characteristics include:
249 SpecInt92, 349 SpecFP92 for 168-MHz uniprocessor
332 SpecInt92, 505 SpecFP92 for 200-MHz multiprocessor
C.1.4

UltraSPARC II Processor

The UltraSPARC II processor is a high-performance, highly-integrated superscalar
processor implementing the SPARC-V9 64-bit RISC architecture. The UltraSPARC II
processor is capable of sustaining the execution of up to four instructions per cycle
C-4 Sun Ultra 2 Series Service Manual • July 1996
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