IDT79R3051 Datasheet, PDF (1/23 Pages) Integrated Device Technology – RISControllers

IDT79R3051/79R3052
RISControllers^™
IDT79R3051^™, 79R3051E
IDT79R3052^™, 79R3052E
Integrated Device Technology, Inc.
FEATURES:
• Instruction set compatible with IDT79R3000A and
IDT79R3001 MIPS RISC CPUs
• High level of integration minimizes system cost, power
consumption
— IDT79R3000A /IDT79R3001 RISC Integer CPU
— R3051 features 4KB of Instruction Cache
— R3052 features 8KB of Instruction Cache
— All devices feature 2kB of Data Cache
— “E” Versions (Extended Architecture) feature full
function Memory Management Unit, including 64-
entry Translation Lookaside Buffer (TLB)
— 4-deep write buffer eliminates memory write stalls
— 4-deep read buffer supports burst refill from slow
memory devices
— On-chip DMA arbiter
— Bus Interface minimizes design complexity
• Single clock input with 40%-60% duty cycle
• 35 MIPS, over 64,000 Dhrystones at 40MHz
• Low-cost 84-pin PLCC packaging that's pin-/package-
compatible with thermally enhanced 84-pin MQUAD.
• Flexible bus interface allows simple, low-cost designs
• 20, 25, 33, and 40MHz operation
• Complete software support
— Optimizing compilers
— Real-time operating systems
— Monitors/debuggers
— Floating Point Software
— Page Description Languages
Clk2xIn
Int(5:0)
Clock
Generator
Unit
Master Pipeline Control
BrCond(3:0)
System Control
Coprocessor
Integer
CPU Core
Exception/Control
Registers
General Registers
(32 x 32)
Memory Management
Registers
ALU
Shifter
Translation
Lookaside Buffer
(64 entries)
Mult/Div Unit
Address Adder
PC Control
Virtual Address
32
Physical Address Bus
Instruction
Cache
(8kB/4kB)
Data
32
Cache
(2kB)
4-deep
Write
Buffer
Data Bus
Bus Interface Unit
4-deep
Read
Buffer
DMA
Arbiter
BIU
Control
Address/
Data
DMA Rd/Wr SysClk
Ctrl Ctrl
Figure 1. R3051 Family Block Diagram
2874 drw 01
The IDT logo is a registered trademark, and RISChipset, RISController, R3041, R3051, R3052, R3071, R3081, R3720, R4400 and R4600 are trademarks of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
©1995 Integrated Device Technology, Inc.
5.3
SEPTEMBER 1995
DSC-3000/5
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