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參數(shù)資料
| 型號： | RM5261-266-Q |
| 廠商： | PMC-SIERRA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RM5261⑩ Microprocessor with 64-Bit System Bus Data Sheet Released |
| 中文描述： | 64-BIT, 266 MHz, MICROPROCESSOR, PQFP208 |
| 封裝： | POWER, QFP-208 |
| 文件頁數(shù)： | 14/40頁 |
| 文件大?。?/td> | 683K |
| 代理商： | RM5261-266-Q |
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Proprietary and Confidential to PMC-Sierra, Inc and for its Customer
’
s Internal Use
Document ID: PMC-2002241, Issue 1
14
RM5261
Microprocessor with 64-Bit System Bus Data Sheet
Released
unit and a pipelined multiply/add unit. Overlap of the divide/square root and multiply/add
operations is supported.
The RM5261 maintains fully precise floating-point exceptions while allowing both overlapped
and pipelined operations. Precise exceptions are extremely important in object-oriented
programming environments and highly desirable for debugging in any environment.
Floating-point operations include:
add
subtract
multiply
divide
square root
reciprocal
reciprocal square root
conditional moves
conversion between fixed-point and floating-point format
conversion between floating-point formats
floating-point compare.
Table 2 gives the latencies of the floating-point instructions in internal processor cycles.
Table 2 Floating-Point Instruction Cycles
Operation
fadd
fsub
fmult
fmadd
fmsub
fdiv
fsqrt
frecip
frsqrt
fcvt.s.d
fcvt.s.w
fcvt.s.l
fcvt.d.s
fcvt.d.w
fcvt.d.l
fcvt.w.s
fcvt.w.d
fcvt.l.s
Latency
4
4
4/5
4/5
4/5
21/36
21/36
21/36
38/68
4
6
6
4
4
4
4
4
4
Repeat Rate
1
1
1/2
1/2
1/2
19/34
19/34
19/34
36/66
1
3
3
1
1
1
1
1
1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RM5261A | 制造商:PMC 制造商全稱:PMC 功能描述:64-Bit MIPS RISC Microprocessor with 32/64-Bit System Bus |
| RM5261A-300HI-B002 | 制造商:PMC Sierra from Components Direct 功能描述:MICROPROCESSOR 64-BIT 300MHZ 0.18UM TECHNOLOGY - Trays 制造商:PMC-Sierra 功能描述:PMC SIERRA RM5261A-300HI-B002, Microprocessor 64-Bit 300MHz 0.18um Technology 3.3V 208-Pin MQFP |
| RM5261A-300J-B002 | 制造商:PMC Sierra from Components Direct 功能描述:RM5261A-300J-B002, MICROPROCESSOR 64-BIT 300MHZ 0.18UM TECHN - Trays 制造商:PMC SIERRA 功能描述:PMC SIERRA RM5261A-300J-B002, Microprocessor 64-Bit 300MHz 0.18um Technology 3.3V 208-Pin LFMQFP |
| RM5270-150S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:64-Bit Microprocessor |
| RM5270-200S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:64-Bit Microprocessor |
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