64-bit RISC CPUs

System Design Issues with the R4600/R4400 Processors (WhitePaper 06/01/94 61KB): System Design Issues with the R4600/R4400 Processors

32- and 64-Bit Operation of the IDT79R4600™ (AppNote 06/01/94 16KB): 32- and 64-Bit Operation of the IDT79R4600™
AN-135 Software Visible Differences Between the R4650 and R4600/R4700 Orion Family Members (Appnote 03/01/95 17KB): AN-135 Software Visible Differences Between the R4650 and R4600/R4700 Orion Family Members
CP-20 Increasing L2 Cache and System Performance by Eliminating Cache Access Wait -States (AppNote 06/01/94 60KB): CP-20 Increasing L2 Cache and System Performance by Eliminating Cache Access Wait -States
Porting R3000 Code to an R4400/R4600 Platform (WhitePaper 07/01/94 35KB): Porting R3000 Code to an R4400/R4600 Platform
R4600™ Cache Initialization (AppNote 06/01/94 25KB): R4600™ Cache Initialization
R4600™ Power Calculations (AppNote 06/01/94 35KB): R4600™ Power Calculations
The IDT79R4600 Powers Inter-Networking Applications (WhitePaper 07/01/94 48KB): The IDT79R4600 Powers Inter-Networking Applications
Timers Using Sonic™ and Count Register in Orion™ (AppNote 06/01/94 27KB): Timers Using Sonic™ and Count Register in Orion™
TN-15 R4600 Bus Error Handling (AppNote 06/01/94 12KB): TN-15 R4600 Bus Error Handling

79S460 (DataSheet 09/01/95 14KB): R4600 Evaluation and Development Platform
79S464 (DataSheet 09/01/95 32KB): Orion Evaluation Kit
EZ -Eval Program for 64-bit Microprocessors (PrsRel 09/11/95 24KB): IDT Announces First Development Kit for 64-Bit RISC Microprocessors--EZ-Eval Program gives Designers Free 60-Day Trial of 32 and 64-Bit Processors
IDT7RS464 Eval Board User's Manual (Book 06/01/95 720KB): User's Manual for the EZ-Eval 79S464 Orion Evaluation Board

79R4400 (DataSheet 07/01/95 300KB): Third Generation 64-Bit Super Pipelined RISC Microprocessor

79R4600 Data Sheet (DataSheet 09/01/95 160KB): Fourth Generation 64-bit RISC Microprocessor
Heatsink Issues for Microprocessor Products with Internal Slug (AppNote 03/01/95 8KB): Heatsink Issues for Microprocessor Products with Internal Slug
IDT Announces New 150 MHz ORION™ R4600™ 64-Bit RISC Processor (PrsRel 06/28/94 24KB): IDT Announces New 150 MHz ORION™ R4600™ 64-Bit RISC Processor
IDT Announces the Orion™ R4600's Role in Silicon Graphics' Upgraded Indy Workstation (PrsRel 08/15/94 24KB): IDT Announces the Orion R4600's Role in Silicon Graphics' Upgraded Indy Workstation
IDT Orion Announced as Key Processor Cisco Router (PrsRel 08/22/94 24KB): IDT Orion Announced as Key Processor Cisco Router
IDT R4600 used in Killer Instinct arcade game (PrsRel 03/09/95 24KB)
IDT79R4600™/R4400™ "OUTSIDE-SPECS" Differences (AppNote 06/01/94 20KB): IDT79R4600™/R4400™ "OUTSIDE-SPECS" Differences
New 133MHz Orion™ R4600™ 64-Bit MIPS RISC Processor with Flexbus™ (PrsRel 03/18/94 24KB): New 133MHz Orion™ R4600™ 64-Bit MIPS RISC Processor with Flexbus™
New Orion™ R4600™ MIPS RISC Processor Premieres (PrsRel 11/15/93 24KB): New Orion™ R4600™ MIPS RISC Processor Premieres

79R4650 Embedded 64-Bit RISC Orion Microprocessor (DataSheet 09/01/95 95KB): Detailed electrical parameters for the R4650 embedded 64-bit Orion RISC CPU with Mult-Accum
AN-137-High End/Low Power R4650 with DSP Capabilities (AppNote 01/01/95 38KB)

79R4600/R4700 Hardware User's Manual (Manual 04/01/95 2128KB): This technical reference describes both the hardware interface and programming model of both the R4600 and R4700 Orion-family 64-bit processors.
79R4700/RV4700 (DataSheet 09/01/95 136KB): Enhanced Orion 64-bit RISC Microprocessor with fast floating point unit (FPU), 3.3 volt and 5 volt
79R4761 Product Brief (DataSheet 09/01/95 57KB): Product description for R4761 Orion Family Memory and I/O Controller
IDT's Orion™ R4700™ 64-Bit MIPS Microprocessor Wins 1994 Editor's Choice (PrsRel 01/16/95 24KB): IDT's ORION R4700 64-Bit MIPS Microprocessor Wins 1994 Editor's Choice

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