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| 型号： | YF80532KC0412M |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2000 MHz, MICROPROCESSOR, CPGA603 |
| 封装： | MICRO, PGA-603 |
| 文件页数： | 116/129页 |
| 文件大小： | 1528K |
| 代理商： | YF80532KC0412M |
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Datasheet
87
Features
6.4.6.2
Thermal Limit Registers
The SMBus thermal sensor has four Thermal Limit Registers: RRHL is used to read the high limit;
RRLL is read for the low limit; WRHL is used to write the high limit; and the WRLL to write the
low limit. These registers allow the user to define high and low limits for the processor core
thermal diode reading. The encoding for these registers is the same as for the Thermal Reference
Register shown in Table 44. If the processor thermal diode reading equals or exceeds one of these
limits, then the alarm bit (RHIGH or RLOW) in the Thermal Sensor Status Register is triggered.
6.4.6.3
Status Register
The Status Register shown in Table 45 indicates which (if any) thermal value thresholds for the
processor core thermal diode have been exceeded. It also indicates if a conversion is in progress or
if an open circuit has been detected in the processor core thermal diode connection. Once set, alarm
bits stay set until they are cleared by a Status Register read. A successful read to the Status Register
will clear any alarm bits that may have been set, unless the alarm condition persists. If the
SM_ALERT# signal is enabled via the Thermal Sensor Configuration Register and a thermal diode
threshold is exceeded, an alert will be sent to the platform via the SM_ALERT# signal.
This register is read by accessing the RS Command Register.
6.4.6.4
Configuration Register
The Configuration Register controls the operating mode (stand-by vs. auto-convert) of the SMBus
thermal sensor. Table 46 shows the format of the Configuration Register. If the RUN/STOP bit is
set (high) then the thermal sensor immediately stops converting and enters stand-by mode. The
thermal sensor will still perform analog to digital conversions in stand-by mode when it receives a
one-shot command. If the RUN/STOP bit is clear (low) then the thermal sensor enters auto-
conversion mode.
This register is accessed by using the thermal sensor Command Register: The RC command
register is used for read commands and the WC command register is used for write commands. See
Table 45. SMBus Thermal Sensor Status Register
Bit
Name
Reset State
Function
7 (MSB)
BUSY
N/A
If set, indicates that the device’s analog to digital converter is
busy.
6
RESERVED
Reserved for future use
5
RESERVED
Reserved for future use
4RHIGH
0
If set, indicates the processor core thermal diode high
temperature alarm has activated.
3RLOW
0
If set, indicates the processor core thermal diode low
temperature alarm has activated.
2OPEN
0
If set, indicates an open fault in the connection to the
processor core diode.
1
RESERVED
Reserved for future use.
0 (LSB)
RESERVED
Reserved for future use.
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