Available at 80-200MHz, with mode bit dependent output
clock frequencies
◆
64GB physical address space
◆
Processor family for a wide variety of embedded
applications
– LAN switches
– Routers
– Color printers
◆
Description
The IDT79R4700 64-bit RISC Microprocessor is both software and
pin-compatible with the R4
XXX
processor family. With 64-bit processing
capabilities, the R4700 provides more computational power and data
movement bandwidth than is delivered to typical embedded systems by
32-bit processors.
The R4700 is upwardly software compatible with the IDT79R3000
™
microprocessor family, including the IDTRISController
™
79R3051
™
,
R3052
™
, R3041
™
, R3081
™
as well as the R4640
™
, R4650
™
, RC64474/
475
™
and R5000
™
. An array of development tools facilitates rapid
development of R4700-based systems, allowing a variety of customers
access to the MIPS Open Architecture philosophy.
Block Diagram
Data Set A
Store Buffer
SysAD
Instruction Select
Write Buffer
Read Buffer
Data Set B
DBus
Control
Tag
Floating-point
Register File
Unpacker/Packer
Floating-point
Add/Sub/Cvt/Div/Sqrt
Integer Divide
Floating-point Control
Data Tag A
DTLB Physical
Data Tag B
Instruction Set A
Address Buffer
Instruction Tag A
ITLB Physical
Instruction Tag B
IBus
AuxTag
Instruction Register
Instruction Set B
Load Aligner
Joint TLB
Integer Register File
Integer/Address Adder
Coprocessor 0
DVA
Data TLB Virtual
Shifter/Store Aligner
Logic Unit
PC Incrementer
System/Memory
Control
IVA
Branch Adder
Instruction TLB Virtual
Program Counter
Integer Control
Floating-point/Integer
Multiply
Phase Lock Loop, Clocks
The IDT logo is a trademark and RC32134, RC32364, RC64145, RC64474, RC64475, RC4650, RC4640, RC4600,RC4700 RC3081, RC3052, RC3051, RC3041, RISController, and RISCore are trademarks of Inte-
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