參數(shù)資料
型號: STP1081ABGA-150
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA256
封裝: PLASTIC, BGA-256
文件頁數(shù): 8/32頁
文件大?。?/td> 478K
代理商: STP1081ABGA-150
16
STP1081
Preliminary
Companion Device for 250/300 MHz UltraSPARC-II Systems
UltraSPARC
-II Data Buffer (UDB-II)
July 1997
One-to-Two Clock Ratio for Data Transfer
Figure 9 shows the most common data transfer case. For UPA-to-CPU data transfer, the operation begins with
S_REPLY, which is clocked at the rising edge of SYS_CLK, corresponding to time t0. At time t1, the next rising
edge of SYS_CLK, the data is latched into UDB-II. In other words, (given that there is no data stall) UDB-II
will take what is on the UPA bus on the next SYS_CLK rising edge following S_REPLY.
The processor requests the data in UDB-II by asserting CNTL. Note that one whole EBUS_CLK cycle must
complete after SYS_CLK rise where the data was latched, before CNTL can be asserted. Once this cycle com-
pletes, CNTL is given at the rising edge of EBUS_CLK.
Two cycles later, the requested data packet appears at the output of UDB-II (the same as the microprocessor
input.)
For CPU-to-UPA data transfer, the processor sends CNTL and E$_DATA at the same time. When UPA
requests the data, S_REPLY may be asserted as little as two cycles after data is latched, and that data appears
at the output of UDB-II two cycles later.
Note the following differences:
The S_REPLY is only given once for every transaction, one cycle before the data is latched into UDB-II. How-
ever, CNTL is given for every E$_DATA and during the same cycle as E$_DATA.
相關(guān)PDF資料
PDF描述
STP1091PGA-75 2M X 1, CACHE CONTROLLER, CPGA376
STP1100BGA-100 32-BIT, 100 MHz, RISC PROCESSOR, PBGA272
STP2001QFP MULTIFUNCTION PERIPHERAL, PQFP16
STP2011PGA SPECIALTY MICROPROCESSOR CIRCUIT, PPGA279
STP2024PQFP 25 MHz, DMA CONTROLLER, PQFP120
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STP1091PGA-75 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Cache Controller
STP1091PGA-90 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Cache Controller
STP10LN80K5 功能描述:MOSFET N-CH 800V 8A TO-220 制造商:stmicroelectronics 系列:MDmesh?? 包裝:管件 零件狀態(tài):有效 FET 類型:MOSFET N 通道,金屬氧化物 FET 功能:標(biāo)準 漏源極電壓(Vdss):800V 電流 - 連續(xù)漏極(Id)(25°C 時):8A(Tc) 不同?Id,Vgs 時的?Rds On(最大值):630 毫歐 @ 4A,10V 不同 Id 時的 Vgs(th)(最大值):5V @ 100μA 不同 Vgs 時的柵極電荷(Qg):15nC @ 10V 不同 Vds 時的輸入電容(Ciss):427pF @ 100V 功率 - 最大值:110W 工作溫度:-55°C ~ 150°C(TJ) 安裝類型:通孔 封裝/外殼:TO-220-3 供應(yīng)商器件封裝:TO-220 標(biāo)準包裝:50
STP10N105K5 功能描述:MOSFET N-CH 1050V 6A TO-220AB 制造商:stmicroelectronics 系列:MDmesh? K5 包裝:管件 零件狀態(tài):有效 FET 類型:MOSFET N 通道,金屬氧化物 FET 功能:標(biāo)準 漏源極電壓(Vdss):1050V(1.05kV) 電流 - 連續(xù)漏極(Id)(25°C 時):6A(Tc) 不同?Id,Vgs 時的?Rds On(最大值):1.3 歐姆 @ 3A,10V 不同 Id 時的 Vgs(th)(最大值):5V @ 100μA 不同 Vgs 時的柵極電荷(Qg):21.5nC @ 10V 不同 Vds 時的輸入電容(Ciss):545pF @ 100V 功率 - 最大值:130W 工作溫度:-55°C ~ 150°C(TJ) 安裝類型:通孔 封裝/外殼:TO-220-3 供應(yīng)商器件封裝:TO-220 標(biāo)準包裝:50
STP10N10L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRANSISTOR | MOSFET | N-CHANNEL | 100V V(BR)DSS | 10A I(D) | TO-220AB