參數(shù)資料
型號(hào): PowerPC 750CX
廠商: IBM Microeletronics
英文描述: 32-Bit Reduced Instruction Set Computer (RISC) Microprocessors(32位精簡指令集微處理器)
中文描述: 32位精簡指令集計(jì)算機(jī)(RISC)微處理器(32位精簡指令集微處理器)
文件頁數(shù): 10/44頁
文件大小: 562K
代理商: POWERPC 750CX
PowerPC 750CX RISC Microprocessor Datasheet
Page 10
Version 1.1
November 13, 2000
Floating-point unit (continued)
- 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
L1 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)
- 3-state (MEI) memory coherency
- Hardware support for data coherency
- 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
- 4 instruction BATs and 4 data BATs
- Virtual memory support for up to 4 exabytes (2
52
) virtual memory
- Real memory support for up to 4 gigabytes (2
32
) of physical memory
- Support for big/little-endian addressing
Level 2 (L2) cache
- Internal L2 cache controller and 4K-entry tags; 256K data SRAMs
- Copy-back or write-through data cache on a page basis, or for all L2
- 64-byte sectored line size
- L2 frequency at core speed
- On-board ECC
Bus interface
- Compatible with 60X processor interface (some pin functions removed, see Table 11, “Signals Missing from
Previous PowerPC 750 Designs” on page 27)
- 32-bit address bus
- 64-bit data bus (or 32-bit mode)
- Core-to-bus frequency multipliers of 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, 8x, and 10x
supported
Power
- under 4 watts typical @ 400MHz
Testability
- LSSD scan design
- Powerful diagnostic and test interface through Common On-Chip Processor (COP) and IEEE 1149.1 (JTAG)
interface
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