- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373714 > TS68882VF20 (ATMEL CORP) Power Module PDF資料下載
參數(shù)資料
| 型號(hào)： | TS68882VF20 |
| 廠商： | ATMEL CORP |
| 元件分類： | 數(shù)學(xué)處理器 |
| 英文描述： | Power Module |
| 中文描述： | MATH COPROCESSOR, CQFP68 |
| 封裝： | CERAMIC, QFP-68 |
| 文件頁數(shù)： | 23/43頁 |
| 文件大小： | 1414K |
| 代理商： | TS68882VF20 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當(dāng)前第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁
23
TS68882
2119A
–
HIREL
–
04/02
Since the co-processor interface is based solely upon bus cycles and the TS68882 is
never a bus master, the TS68882 can be placed on either the logical or physical side of
the system memory management unit. This provides a great deal of flexibility in the sys-
tem design.
The virtual machine architecture of the TS68000 Family is supported by the co-proces-
sor interface and the TS68882 through the FSAVE and FRESTORE instructions. If the
TS68020/TS68030 detects a page fault and/or task time out, it can force the TS68882 to
stop whatever operation is in process at any time (even in the middle of the execution of
an instruction) and save the TS68882 internal state in memory.
The size of the saved internal state of the TS68882 is dependent upon what the CCU
and ECU are doing at the time that the FSAVE is executed. If the TS68882 is in the
reset state when the FSAVE instruction is received, only one word of state is transferred
to memory, which may be examined by the operating system to determine that the co-
processor programmer
’
s model is empty. If the co-processor is idle when the save
instruction is received, only a few words of internal state are transferred to memory. If
the TS68882 is in the middle of performing a calculation, it may be necessary to save
the entire internal state of the machine. Instructions that can complete execution in less
time than it would take to save the larger state in mid-instruction are allowed to complete
execution and then save the idle state.
Thus the size of the saved internal state is kept to a minimum. The ability to utilize sev-
eral internal state sizes greatly reduces the average context switching time.
The FRESTORE instruction permits reloading of an internal state that was saved earlier,
and continue any operation that was previously suspended. Restoring of the reset inter-
nal state functions just like a hardware reset to the TS68882 in that defaults are re-
established.
Note:
Though the TS68882 is instruction set compatible with the TS68881, the idle and busy
state frames are both 32 bytes larger on the TS68882 than on the TS68881. A unique
format word is generated by the TS68882 so that system software can detect this
difference.
Operand Data Formats
The TS68882 supports the following data formats:
Byte Integer (B)
Word Integer (W)
Long Word Integer (L)
Single Precision Real (S)
Double Precision Real (D)
Extended Precision Real (X)
Packed Decimal String Real (P)
The capital letters contained in parenthesis denote suffixes added to instructions in the
assembly language source to specify the data format to be used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS68882VF25 | Power Module |
| TS68882VF33 | Power Module |
| TS68C000MC8A | LOW POWER HCMOS 16/32 BIT MICROPROCESSOR |
| TS68C000 | LOW POWER HCMOS 16/32 BIT MICROPROCESSOR |
| TS68C000DESC01UAA | LOW POWER HCMOS 16/32 BIT MICROPROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS68882VF25 | 功能描述:IC FLOAT-PT CO-PROC 25MHZ 68CQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:- 標(biāo)準(zhǔn)包裝:60 系列:SCC 處理器類型:Z380 特點(diǎn):全靜電 Z380 CPU 速度:20MHz 電壓:5V 安裝類型:表面貼裝 封裝/外殼:144-LQFP 供應(yīng)商設(shè)備封裝:144-LQFP 包裝:托盤 |
| TS68882VF33 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:CMOS Enhanced Floating-point Co-processor |
| TS68882VR1-20 | 功能描述:IC FLOAT-PT CO-PROC 20MHZ 68PGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:- 標(biāo)準(zhǔn)包裝:60 系列:SCC 處理器類型:Z380 特點(diǎn):全靜電 Z380 CPU 速度:20MHz 電壓:5V 安裝類型:表面貼裝 封裝/外殼:144-LQFP 供應(yīng)商設(shè)備封裝:144-LQFP 包裝:托盤 |
| TS68882VR1-25 | 功能描述:IC FLOAT-PT CO-PROC 25MHZ 68PGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:- 標(biāo)準(zhǔn)包裝:60 系列:SCC 處理器類型:Z380 特點(diǎn):全靜電 Z380 CPU 速度:20MHz 電壓:5V 安裝類型:表面貼裝 封裝/外殼:144-LQFP 供應(yīng)商設(shè)備封裝:144-LQFP 包裝:托盤 |
| TS68882VR1-33 | 制造商:e2v technologies 功能描述:TS68882VR1-33 - Trays |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。