- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378210 > 80546KF (Intel Corp.) 64-bit Intel Xeon Processor MP with up to 8MB L3 Cache PDF資料下載
參數(shù)資料
| 型號： | 80546KF |
| 廠商： | Intel Corp. |
| 英文描述： | 64-bit Intel Xeon Processor MP with up to 8MB L3 Cache |
| 中文描述： | 64位Intel Xeon處理器MP的高達8MB三級高速緩存 |
| 文件頁數(shù)： | 113/138頁 |
| 文件大?。?/td> | 2666K |
| 代理商： | 80546KF |
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頁當前第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁
64-bit Intel
Xeon Processor MP with up to 8MB L3 Cache Datasheet
113
Features
8.4.3
PIROM and Scratch EEPROM Supported SMBus
Transactions
The Processor Information ROM (PIROM) responds to two SMBus packet types: Read Byte and
Write Byte. However, since the PIROM is write-protected, it will acknowledge a Write Byte
command but ignore the data. The Scratch EEPROM responds to Read Byte and Write Byte
commands.
Table 8-3
diagrams the Read Byte command.
Table 8-4
diagrams the Write Byte
command. Following a write cycle to the scratch ROM, software must allow a minimum of 10 ms
before accessing either ROM of the processor.
In the tables, ‘S’ represents the SMBus start bit, ‘P’ represents a stop bit, ‘R’ represents a read bit,
‘W’ represents a write bit, ‘A’ represents an acknowledge (ACK), and ‘///’ represents a negative
acknowledge (NACK). The shaded bits are transmitted by the Processor Information ROM or
Scratch EEPROM, and the bits that aren’t shaded are transmitted by the SMBus host controller. In
the tables, the data addresses indicate 8 bits. The SMBus host controller should transmit 8 bits with
the most significant bit indicating which section of the EEPROM is to be addressed: the Processor
Information ROM (MSB = 0) or the Scratch EEPROM (MSB = 1).
8.4.4
SMBus Thermal Sensor
The processor’s SMBus thermal sensor provides a means of acquiring thermal data from the
processor. The thermal sensor is composed of control logic, SMBus interface logic, a precision
analog-to-digital converter, and a precision current source. The sensor drives a small current
through the p-n junction of a thermal diode located on the processor core. The forward bias voltage
generated across the thermal diode is sensed and the precision A/D converter derives a single byte
of thermal reference data, or a “thermal byte reading.” The nominal precision of the least
significant bit of a thermal byte is 1° Celsius.
The processor incorporates the SMBus thermal sensor onto the processor package. Upper and
lower thermal reference thresholds can be individually programmed for the SMBus thermal sensor.
Comparator circuits sample the register where the single byte of thermal data (thermal byte
reading) is stored. These circuits compare the single-byte result against programmable threshold
bytes. If enabled, the alert signal on the processor SMBus (SM_ALERT#) will be asserted when
the sensor detects that either threshold is reached or crossed. Analysis of SMBus thermal sensor
data may be useful in detecting changes in the system environment that may require attention.
The processor SMBus thermal sensor may be used to monitor long term temperature trends, but
can not be used to manage the short term temperature of the processor or predict the activation of
the thermal control circuit. As mentioned earlier, the processor’s high thermal ramp rates make this
infeasible. Refer to the thermal design guidelines listed in
Section 1.2
for more details.
Table 8-3. Read Byte SMBus Packet
S
Slave
Address
Write
A
Command
Code
A
S
Slave
Address
Read
A
Data
///
P
1
7-bits
1
1
8-bits
1
1
7-bits
1
1
8-bits
1
1
Table 8-4. Write Byte SMBus Packet
S
Slave Address
Write
A
Command Code
A
Data
A
P
1
7-bits
1
1
8-bits
1
8-bits
1
1
相關PDF資料 |
PDF描述 |
|---|---|
| 8085AH | 8 BIT HMOS MICROPROCESSORS |
| 8085AH-1 | 8 BIT HMOS MICROPROCESSORS |
| 8085AH-2 | 8 BIT HMOS MICROPROCESSORS |
| 8087 | MATH COPROCESSOR |
| 8087-1 | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TV06; No. of Contacts:61; Connector Shell Size:25; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 80546KG3200FA | 制造商:undefined 功能描述: |
| 805470 | 制造商:Phoenix Contact 功能描述:Labels Individual Label Polyester White 8x20mm |
| 80-5470-001 | 制造商:Applied Engineering Products (AEP) 功能描述:13"CBL W/CON ON BOTH ENDS - PLUG, R/A PUSHON - Bulk |
| 80547001 | 功能描述:MOTOR 82540 250RPM 220-230V 50/6 制造商:crouzet 系列:* 零件狀態(tài):在售 標準包裝:6 |
| 80547002 | 功能描述:MOTOR 82540 375RPM 220-230V 50HZ 制造商:crouzet 系列:* 零件狀態(tài):在售 標準包裝:6 |
發(fā)布緊急采購，3分鐘左右您將得到回復。