參數(shù)資料
型號: EP9315-IBZ
廠商: Cirrus Logic Inc
文件頁數(shù): 77/106頁
文件大小: 0K
描述: IC ARM9 SOC ENH UNIV 352PBGA
標(biāo)準(zhǔn)包裝: 40
系列: EP9
核心處理器: ARM9
芯體尺寸: 16/32-位
速度: 200MHz
連通性: EBI/EMI,EIDE,以太網(wǎng),I²C,IrDA,鍵盤/觸摸屏,PCMCIA,SPI,UART/USART,USB
外圍設(shè)備: AC'97,DMA,I²S,LCD,LED,MaverickKey,POR,PWM,WDT
輸入/輸出數(shù): 16
程序存儲器類型: ROMless
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 352-BGA
包裝: 托盤
配用: 598-1144-ND - KIT DEVELOPMENT EP9315 ARM9
其它名稱: 598-1263
3-2
DS785UM1
Copyright 2007 Cirrus Logic
MaverickCrunch Co-Processor
EP93xx User’s Guide
3
IEEE-754 single precision floating point (24-bit signed significand and 8-bit biased
exponent)
IEEE-754 double precision floating point (53-bit signed significand and 11-bit biased
exponent)
32-bit integer
64-bit integer
The co-processor performs the following standard operations on all four supported data
formats:
addition
subtraction
multiplication
absolute value
negation
logical left/right shift
comparison
In addition, for 32-bit integers, the co-processor provides:
multiply-accumulate (MAC)
multiply-subtract (MSB)
Any of the four data formats may be converted to another of the formats. All four data types
may be loaded directly from and stored directly to memory via the ARM920T co-processor
interface. They may also be moved to or from ARM920T registers.
The MaverickCrunch co-processor also provides a 72-bit extended precision integer format
that is used only in the accumulators. The accumulators may also be used in MAC and MSB
operations.
IEEE-754 rounding and exceptions are also provided. Four rounding modes for floating point
operations are:
round to nearest
round toward +
round toward -
round toward 0
Exceptions include:
Invalid operator
Overflow
Underflow
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