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ACT-7000SC-225F17Q fiches techniques PDF

Aeroflex Circuit Technology - ACT 7000SC 64-Bit Superscaler Microprocessor

Numéro de référence ACT-7000SC-225F17Q
Description ACT 7000SC 64-Bit Superscaler Microprocessor
Fabricant Aeroflex Circuit Technology 
Logo Aeroflex Circuit Technology 





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ACT-7000SC-225F17Q fiche technique
ACT 7000SC
64-Bit Superscaler Microprocessor
Features
Full militarized QED RM7000 microprocessor
Dual Issue symmetric superscalar microprocessor with
instruction prefetch optimized for system level
price/performance
150, 200, 210, 225 MHz operating frequency
Consult Factory for latest speeds
MIPS IV Superset Instruction Set Architecture
High performance interface (RM52xx compatible)
600 MB per second peak throughput
75 MHz max. freq., multiplexed address/data
Supports 1/2 clock multipliers (2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9)
IEEE 1149.1 JTAG (TAP) boundary scan
Integrated primary and secondary caches - all are 4-way set
associative with 32 byte line size
16KB instruction
16KB data: non-blocking and write-back or write-through
256KB on-chip secondary: unified, non-blocking, block writeback
MIPS IV instruction set
Data PREFETCH instruction allows the processor to overlap cache
miss latency and instruction execution
Floating point combined multiply-add instruction increases
performance in signal processing and graphics applications
Conditional moves reduce branch frequency
Index address modes (register + register)
Embedded supply de-coupling capacitors and additional PLL
filter components
Integrated memory management unit (ACT52xx compatible)
Fully associative joint TLB (shared by I and D translations)
48 dual entries map 96 pages
4 entry DTLB and 4 entry ITLB
Variable page size (4KB to 16MB in 4x increments)
Embedded application enhancements
Specialized DSP integer Multiply-Accumulate instruction,
(MAD/MADU) and three-operand multiply instruction (MUL/U)
Per line cache locking in primaries and secondary
Bypass secondary cache option
I&D Test/Break-point (Watch) registers for emulation & debug
Performance counter for system and software tuning & debug
Ten fully prioritized vectored interrupts - 6 external, 2 internal, 2
software
Fast Hit-Writeback-Invalidate and Hit-Invalidate cache operations
for efficient cache management
High-performance floating point unit - 600 M FLOPS
maximum
Single cycle repeat rate for common single-precision operations
and some double-precision operations
Single cycle repeat rate for single-precision combined multiply-
add operations
Two cycle repeat rate for double-precision multiply and
double-precision combined multiply-add operations
Fully static CMOS design with dynamic power down logic
Standby reduced power mode with WAIT instruction
4 watts typical @ 2.5V Int., 3.3V I/O, 200MHz
208-lead CQFP, cavity-up package (F17)
208-lead CQFP, inverted footprint (F24), with the same pin
rotation as the commercial QED RM5261
BLOCK DIAGRAM
On - Chip 256K Byte Secondary Cache, 4 - Way Set Associative
Secondary Tags
Set A
Secondary Tags
Set B
Secondary Tags
Set C
Secondary Tags
Set D
Primary Data Cache
4 - Way Set Associative
DTag
DTLB
ITag
ITLB
Primary Instruction Cache
4 - Way Set Associative
A/D Bus
Pad Bus
Store Buffer
Write Buffer
Read Buffer
D Bus
Pad Buffer
Address Buffer
F-Pipe Bus
Prefetch Buffer
Instruction Dispatch Unit
F Pipe Register
M Pipe Register
M-Pipe Bus
Floating-Point
Load / Align
Floating-Point
Register File
Packer / Unpacker
Comparator
Floating-Point
MultAdd, Add, Sub,
Cvt, Div, Sqrt
Multiplier Array
Joint TLB
Coprocessor 0
DVA
System / Memory
Control
IVA
PC Incrementer
Branch PC Adder
ITLB Virtuals
Program Counter
Load Aligner
Integer Register File
M Pipe
F Pipe
Adder
Adder
StAin/Sh
Logicals
Shifter
Logicals
FA Bus
DTLB Virtuals
PLL/Clocks
Int Mult. Div. Madd
eroflex Circuit Technology – MIPS RISC Microprocessors © SCD7000SC REV B 7/30/01

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