- 您現(xiàn)在的位置：買賣IC網 > PDF目錄375282 > Alpha 21164 (SAMSUNG SEMICONDUCTOR CO. LTD.) Alpha Microprocessor(64位微處理器) PDF資料下載
參數(shù)資料
| 型號： | Alpha 21164 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Alpha Microprocessor(64位微處理器) |
| 中文描述： | 阿爾法微處理器（64位微處理器） |
| 文件頁數(shù)： | 8/115頁 |
| 文件大?。?/td> | 846K |
| 代理商： | ALPHA 21164 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第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頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁
8
Microarchitecture
Memory Address Translation Unit
3.4.1 Data Translation Buffer
The 64-entry, fully associative, dual-read-ported data translation buffer (DTB) stores
recently used data stream (Dstream) page table entries (PTEs). Each entry supports
all four granularity hint-bit combinations, so that a single DTB entry can provide
translation for up to 512 contiguously mapped, 8KB pages.
The DTB also supports the register-enabled superpage extension. The DTB super-
page maps provide virtual-to-physical address translation for two regions of the vir-
tual address space.
3.4.2 Miss Address File
The MTU begins the execution of each load instruction by translating the virtual
address and by accessing the data cache (Dcache). Translation and Dcache tag read
operations occur in parallel. If the addressed location is found in the Dcache (a hit),
then the data from the Dcache is formatted and written to either the integer register
file (IRF) or floating-point register file (FRF). The formatting required depends on
the particular load instruction executed. If the data is not found in the Dcache (a
miss), then the address, target register number, and formatting information are
entered in the miss address file (MAF).
The MAF performs a load-merging function. When a load miss occurs, each MAF
entry is checked to see if it contains a load miss that addresses the same Dcache (32-
byte) block. If it does, and certain merging rules are satisfied, then the new load miss
is merged with an existing MAF entry. This allows the MTU to service two or more
load misses with one data fill from the CBU.
There are six MAF entries for load misses and four more for IDU instruction fetches
and prefetches. Load misses are usually the highest MTU priority.
3.4.3 Store Execution
The Dcache follows a write-through protocol. During the execution of a store
instruction, the MTU probes the Dcache to determine whether the location to be
overwritten is currently cached. If so (a Dcache hit), the Dcache is updated. Regard-
less of the Dcache state, the MTU forwards the data to the CBU.
A load instruction that is issued one cycle after a store instruction in the pipeline cre-
ates a conflict if both the load and store operations access the same memory location.
(The store instruction has not yet updated the location when the load instruction
reads it.) This conflict is handled by forcing the load instruction to take a replay trap;
that is, the IDU flushes the pipeline and restarts execution from the load instruction.
相關PDF資料 |
PDF描述 |
|---|---|
| AlphaPC 164BX | Motherboard(主板) |
| AlphaPC 164UX | Motherboard(主板) |
| ALR006 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
| ALR015 | Circular Connector; No. of Contacts:37; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:14; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
| ALR030 | 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ALPHA250S | 制造商:LAMBDA 制造商全稱:DENSEI-LAMBDA 功能描述:Modular Watt Box Multi-Output Power Supplies 250W/400W/600W/800W/1250W |
| ALPHA2INABOX14 | 制造商:Mitsubishi Electric 功能描述:Alpha 2 PLC starter kit |
| ALPHA3A/0.2M/MMCXM/S/S/26 | 功能描述:850MHz, 868MHz, 900MHz, 915MHz, 1.8GHz, 1.9GHz, 2.1GHz, 2.4GHz Bluetooth, GPRS, GSM, UMTS, WLAN, Zigbee? Blade RF Antenna 3dBi Connector, MMCX Male Adhesive 制造商:siretta ltd 系列:ALPHA 3A 包裝:散裝 零件狀態(tài):有效 頻率組:寬帶 頻率（中心/帶）:850MHz，868MHz，900MHz，915MHz，1.8GHz，1.9GHz，2.1GHz，2.4GHz 頻率范圍:- 天線類型:刀片 頻帶數(shù):8 VSWR:2 回波損耗:- 增益:3dBi 功率 - 最大值:- 特性:- 端接:連接器，MMCX 公型 侵入防護:- 安裝類型:膠合劑 高度（最大值）:0.098"（2.50mm） 應用:Bluetooth，GPRS，GSM，UMTS，WLAN，Zigbee? 標準包裝:1 |
| ALPHA3A/0.4M/FMEF/S/S/26 | 功能描述:850MHz, 868MHz, 900MHz, 915MHz, 1.8GHz, 1.9GHz, 2.1GHz, 2.4GHz Bluetooth, GPRS, GSM, UMTS, WLAN, Zigbee? Blade RF Antenna 3dBi Connector, FME Female Adhesive 制造商:siretta ltd 系列:ALPHA 3A 包裝:散裝 零件狀態(tài):有效 頻率組:寬帶 頻率（中心/帶）:850MHz，868MHz，900MHz，915MHz，1.8GHz，1.9GHz，2.1GHz，2.4GHz 頻率范圍:- 天線類型:刀片 頻帶數(shù):8 VSWR:2 回波損耗:- 增益:3dBi 功率 - 最大值:- 特性:- 端接:連接器，F(xiàn)ME 母型 侵入防護:- 安裝類型:膠合劑 高度（最大值）:0.098"（2.50mm） 應用:Bluetooth，GPRS，GSM，UMTS，WLAN，Zigbee? 標準包裝:1 |
| ALPHA3A/3M/SMAM/S/S/26 | 功能描述:850MHz, 868MHz, 900MHz, 915MHz, 1.8GHz, 1.9GHz, 2.1GHz, 2.4GHz Bluetooth, GPRS, GSM, UMTS, WLAN, Zigbee? Blade RF Antenna 3dBi Connector, SMA Male Adhesive 制造商:siretta ltd 系列:ALPHA 3A 包裝:散裝 零件狀態(tài):有效 頻率組:寬帶 頻率（中心/帶）:850MHz，868MHz，900MHz，915MHz，1.8GHz，1.9GHz，2.1GHz，2.4GHz 頻率范圍:- 天線類型:刀片 頻帶數(shù):8 VSWR:2 回波損耗:- 增益:3dBi 功率 - 最大值:- 特性:- 端接:連接器，SMA 公型 侵入防護:- 安裝類型:膠合劑 高度（最大值）:0.098"（2.50mm） 應用:Bluetooth，GPRS，GSM，UMTS，WLAN，Zigbee? 標準包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復。