Intel III Xeon 500 MHz 80525KX500512 사용자 설명서
제품 코드
80525KX500512
Pentium
®
III Xeon™ Processor at 500 and 550 MHz
Datasheet
47
4.3.6.4
Configuration Register
The configuration register controls the operating mode (standby vs. auto-convert) of the thermal
sensor.
sensor.
shows the format of the configuration register. If the RUN/STOP bit is set (high)
then the thermal sensor immediately stops converting and enters standby mode. The thermal sensor
will still perform analog to digital conversions in standby mode when it receives a one-shot
command. If the RUN/STOP bit is clear (low) then the thermal sensor enters auto-conversion
mode.
will still perform analog to digital conversions in standby mode when it receives a one-shot
command. If the RUN/STOP bit is clear (low) then the thermal sensor enters auto-conversion
mode.
4.3.6.5
Conversion Rate Register
The contents of the conversion rate register determine the nominal rate at which analog to digital
conversions happen when the thermal sensor is in auto-convert mode.
conversions happen when the thermal sensor is in auto-convert mode.
shows the mapping
, the
conversion rate register is set to its default state of 02h (0.2 5Hz nominally) when the thermal
sensor is powered up.
sensor is powered up.
There is a ±25% error tolerance between the conversion rate indicated in the
conversion rate register and the actual conversion rate.
Table 33. Thermal Sensor Status Register
Bit
Name
Function
7 (MSB)
BUSY
A one indicates that the device’s analog to digital converter is busy converting.
6
RESERVED
Reserved for future use
5
RESERVED
Reserved for future use
4
RHIGH
A one indicates that the processor core thermal diode high temperature alarm
has activated.
has activated.
3
RLOW
A one indicates that the processor core thermal diode low temperature alarm
has activated.
has activated.
2
OPE
A one 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.
Table 34. Thermal Sensor Configuration Register
Bit
Name
Reset State
Function
7 (MSB)
RESERVED
0
Reserved for future use.
6
RUN/STOP
0
Standby mode control bit. If high, the device immediately stops
converting, and enters standby mode. If low, the device converts in
either one-shot mode or automatically updates on a timed basis.
converting, and enters standby mode. If low, the device converts in
either one-shot mode or automatically updates on a timed basis.
5-0
RESERVED
0
Reserved for future use.