參數(shù)資料
型號: IBM25PPC750-DB0M2500
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 250 MHz, RISC PROCESSOR, CBGA360
封裝: 25 X 25 MM, 1.27 MM PITCH, CERAMIC, BGA-360
文件頁數(shù): 34/42頁
文件大?。?/td> 496K
代理商: IBM25PPC750-DB0M2500
Page 4
v 3.2
Datasheet
7/15/99
PowerPC 750TM SCM RISC Microprocessor
Preliminary Copy
Fixed-point units
- Fixed-point unit 1 (FXU1); multiply, divide, shift, rotate, arithmetic, logical.
- Fixed-point unit 2 (FXU2); shift, rotate, arithmetic, logical.
- Single-cycle arithmetic, shift, rotate, logical.
- Multiply and divide support (multi-cycle).
- Early out multiply.
Floating-point unit
- Support for IEEE-754 standard single- and double-precision oating-point arithmetic.
- 3 cycle latency, 1 cycle throughput, single-precision multiply-add.
- 3 cycle latency, 1 cycle throughput, double-precision add.
- 4 cycle latency, 2 cycle throughput, double-precision multiply-add.
- Hardware support for divide.
- Hardware support for denormalized numbers.
- Time deterministic non-IEEE mode.
System unit
- Executes CR logical instructions and miscellaneous system instructions.
- Special register transfer instructions.
Cache structure
- 32K, 32-byte line, 8-way set associative instruction cache.
- 32K, 32-byte line, 8-way set associative data cache.
- Single-cycle cache access.
- Pseudo-LRU replacement.
- Copy-back or write-through data cache (on a page per page basis).
- Supports all PowerPC memory coherency modes.
- Non-blocking instruction and data cache (one outstanding miss under hits).
- No snooping of instruction cache.
Memory management unit
- 128 entry, 2-way set associative instruction TLB.
- 128 entry, 2-way set associative data TLB.
- Hardware reload for TLB's.
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