參數(shù)資料
型號: EP9315-IBZ
廠商: Cirrus Logic Inc
文件頁數(shù): 89/106頁
文件大小: 0K
描述: IC ARM9 SOC ENH UNIV 352PBGA
標準包裝: 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
DS785UM1
3-13
Copyright 2007 Cirrus Logic
MaverickCrunch Co-Processor
EP93xx User’s Guide
3
UFE:
Underflow
Trap
Enable.
Enables/disables
software
trapping for IEEE 754 underflow exceptions:
0 = Disable software trapping for underflow exceptions
1 = Enable software trapping for underflow exceptions
OFE:
Overflow Trap Enable. Enables/disables software trapping
for IEEE 754 overflow exceptions:
0 = Disable software trapping for overflow exceptions
1 = Enable software trapping for overflow exceptions
IOE:
Invalid Operator Trap Enable. Enables/disables software
trapping for IEEE 754 invalid operator exceptions:
0 = Disabl e softw are trapping for invali d operator
exceptions
1 = E nab le soft w are tra ppin g for in va li d o pera t or
exceptions
IX:
Inexact. Set when an IEEE 754 inexact exception occurs,
regardless of whether or not software trapping for inexact
exceptions is enabled. Writing a “0” to this position clears
the status bit.
0 = No inexact exception detected
1 = Inexact exception detected
UF:
Underflow. Set when an IEEE 754 underflow exception
occurs, regardless of whether or not software trapping for
underflow exceptions is enabled. Writing a “0” to this
position clears the status bit.
0 = No underflow exception detected
1 = Underflow exception detected
OF:
Overflow. Set when an IEEE 754 overflow exception
occurs, regardless of whether or not software trapping for
overflow exceptions is enabled. Writing a “0” to this
position clears the status bit.
0 = No overflow exception detected
1 = Overflow exception detected
IO:
Invalid Operator. Set when an IEEE 754 invalid operator
exception occurs, regardless of whether or not software
trapping for invalid operator exceptions is enabled. Writing
a “0” to this position clears the status bit.
0 = No invalid operator exception detected
1 = Invalid operator exception detected
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