The I960 ® Processor - Intel 80960SA Manual

®
1.0 THE i960 PROCESSOR
The 80960SA is a member of the 32-bit architecture
from Intel known as the i960 processor family. These
microprocessors were especially designed to serve
the needs of embedded applications. The embedded
market includes applications as diverse as industrial
automation, avionics, image processing, graphics
and networking. These types of applications require
high integration, low power consumption, quick
interrupt response times and high performance.
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ADDRESS SPACE
FETCH
INSTRUCTION
CACHE
INSTRUCTION
STREAM
INSTRUCTION
EXECUTION
PROCESSOR STATE
REGISTERS
INSTRUCTION
POINTER
ARITHMETIC
CONTROLS
PROCESS
CONTROLS
TRACE
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Figure 2. 80960SA Programming Environment
Since time to market is critical, embedded micropro-
cessors need to be easy to use in both hardware and
software designs.
All members of the i960 processor family share a
common core architecture which utilizes RISC
technology so that, except for special functions, the
family members are object-code compatible. Each
new processor in the family adds its own special set
of functions to the core to satisfy the needs of a
specific application or range of applications in the
embedded market.
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ARCHITECTURALLY
DEFINED
DATA STRUCTURES
LOAD STORE
SIXTEEN 32-BIT
GLOBAL REGISTERS
SIXTEEN 32-BIT
LOCAL REGISTERS
FOUR 80-BIT
FLOATING POINT REGISTERS
CONTROL REGISTERS
80960SA
g0
g15
r0
r15
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