80960KB Datasheet, PDF (1/39 Pages) Intel Corporation – EMBEDDED 32-BIT MICROPROCESSOR WITH INTEGRATED FLOATING-POINT UNIT

80960KB
EMBEDDED 32-BIT MICROPROCESSOR
WITH INTEGRATED FLOATING-POINT UNIT
s High-Performance Embedded Architecture
— 25 MIPS Burst Execution at 25 MHz
— 9.4 MIPS* Sustained Execution at 25 MHz
s 512-Byte On-Chip Instruction Cache
— Direct Mapped
— Parallel Load/Decode for Uncached Instruc-
tions
s Multiple Register Sets
— Sixteen Global 32-Bit Registers
— Sixteen Local 32-Bit Registers
— Four Local Register Sets Stored On-Chip
— Register Scoreboarding
s 4 Gigabyte, Linear Address Space
s Pin Compatible with 80960KA
s Built-in Interrupt Controller
— 31 Priority Levels, 256 Vectors
— 3.4 µs Latency @ 25 MHz
s Easy to Use, High Bandwidth 32-Bit Bus
— 66.7 Mbytes/s Burst
— Up to 16 Bytes Transferred per Burst
s 132-Lead Packages:
— Pin Grid Array (PGA)
— Plastic Quad Flat-Pack (PQFP)
s On-Chip Floating Point Unit
— Supports IEEE 754 Floating Point Standard
— Four 80-Bit Registers
— 13.6 Million Whetstones/s (Single
Precision) at 25 MHz
The 80960KB is a member of Intel’s i960® 32-bit processor family, which is designed especially for embedded
applications. It includes a 512-byte instruction cache, an integrated floating-point unit and a built-in interrupt
controller. The 80960KB has a large register set, multiple parallel execution units and a high-bandwidth burst
bus. Using advanced RISC technology, this high performance processor is capable of execution rates in excess
of 9.4 million instructions per second^*. The 80960KB is well-suited for a wide range of applications including non-
impact printers, I/O control and specialty instrumentation.
FOUR
80-BIT FP
REGISTERS
80-BIT
FPU
SIXTEEN
32-BIT GLOBAL
REGISTERS
64- BY 32-BIT
LOCAL
REGISTER
CACHE
32-BIT
INSTRUCTION
EXECUTION
UNIT
INSTRUCTION
FETCH UNIT
512-BYTE
INSTRUCTION
CACHE
INSTRUCTION
DECODER
MICRO-
INSTRUCTION
SEQUENCER
MICRO-
INSTRUCTION
ROM
32-BIT
BUS
CONTROL
LOGIC
32-BIT
BURST
BUS
Figure 1. The 80960KB Processor’s Highly Parallel Architecture
* Relative to Digital Equipment Corporation’s VAX-11/780 at 1 MIPS (VAX-11™ is a trademark of Digital Equipment
Corporation)
Intel Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an Intel product. No other circuit patent
licenses are implied. Information contained herein supersedes previously published specifications on these devices from Intel.
May 1993
© INTEL CORPORATION, 1993
Order Number: 270565-006