PRELIMINARY
80960JD
EMBEDDED 32-BIT MICROPROCESSOR
s
s
Pin/Code Compatible with all 80960Jx
Processors
High-Performance Embedded Architecture
— One Instruction/Clock Execution
— Core Clock Rate is 2x the Bus Clock
— Load/Store Programming Model
— Sixteen 32-Bit Global Registers
— Sixteen 32-Bit Local Registers (8 sets)
— Nine Addressing Modes
— User/Supervisor Protection Model
Two-Way Set Associative Instruction Cache
— 80960JD - 4 Kbyte
— Programmable Cache Locking
Mechanism
Direct Mapped Data Cache
— 80960JD - 2 Kbyte
— Write Through Operation
On-Chip Stack Frame Cache
— Seven Register Sets Can Be Saved
— Automatic Allocation on Call/Return
— 0-7 Frames Reserved for High-Priority
Interrupts
On-Chip Data RAM
— 1 Kbyte Critical Variable Storage
— Single-Cycle Access
s
High Bandwidth Burst Bus
s
s
s
s
s
s
s
— 32-Bit Multiplexed Address/Data
— Programmable Memory Configuration
— Selectable 8-, 16-, 32-Bit Bus Widths
— Supports Unaligned Accesses
— Big or Little Endian Byte Ordering
New Instructions
— Conditional Add, Subtract and Select
— Processor Management
High-Speed Interrupt Controller
— 31 Programmable Priorities
— Eight Maskable Pins plus NMI
— Up to 240 Vectors in Expanded Mode
Two On-Chip Timers
— Independent 32-Bit Counting
— Clock Prescaling by 1, 2, 4 or 8
— lnternal Interrupt Sources
Halt Mode for Low Power
Compatibility
s
IEEE 1149.1 (JTAG) Boundary Scan
s
Packages
s
— 132-Lead Pin Grid Array (PGA)
— 132-Lead Plastic Quad Flat Pack (PQFP)
132
PIN 1
99
i
A80960JD
XXXXXXXXA2
M
© 19xx
i960
®
i
33
NG80960JD
XXXXXXXXA2
M
© 19xx
66
Figure 1. 80960JD Microprocessor
Information in this document is provided solely to enable use of Intel products. Intel assumes no liability whatsoever, including infringement of any
patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products. Information
contained herein supersedes previously published specifications on these devices from Intel.
© INTEL CORPORATION, 1995
September 1995
Order Number: 272596-002
INTEL [ INTEL CORPORATION ]
