參數(shù)資料
型號: STLS2F02-LP
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, PBGA452
封裝: 27 X 27 MM, 2.90 MM HEIGHT, ROHS COMPLIANT, HFCBGA-452
文件頁數(shù): 46/49頁
文件大?。?/td> 706K
代理商: STLS2F02-LP
Introduction
STLS2F02-LP
1
Introduction
STLS processors are based on the Loongson CPU architecture licensed by
STMicroelectronics from the Institute of Computing Technology (ICT), which is part of the
Chinese Academy of Science. The STLS family contains 64-bit high-end processors for
applications requiring high levels of performance and efficiency in terms of cost, power
consumption and area.
The Loongson CPU architecture is compatible in user mode at the MIPSIII level of the
MIPS64-bit architecture.
This microprocessor achieves a leading position in the MIPS family for its combination of
multiple features, including high clock frequency, out-of-order superscalar execution and
ability to run single-instruction-multiple data (SIMD).
STLS processors implement a superscalar, out-of-order execution pipeline with dynamic
branch prediction and non-blocking cache.
Figure 1.
Block diagram
L2 cache
DDR2
333MHz DDR
Controller
Cache Interface
Writeback
Queue
Miss
Queue
Refill Bus
Branch Bus
BTB
BHT
BRQ
Fix
RS
Float
RS
Integer
Register
File
Floating
Point
Register
File
Map Bus
ROQ
ALU1
ALU2
AGU
FPU1
TLB
TAG
Compare
CP0
Queue
D-Cache
64KB
FPU2
ITLB
I-Cache
64KB
Commit Bus
Writeback Bus
Reorder Queue
PC
+
16
PC
Pre-Decoder
Decoder
Register
Mapper
AXI Crossbar
133MHz PCIX
Local IO GPIO, INT
IO Controller
AC00117
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