Intel III Xeon 667 MHz 80526KZ667256 Data Sheet
Product codes
80526KZ667256
PENTIUM® III XEON™ PROCESSOR AT 600 MHz to 1 GHz with 256KB L2 Cache
PROCESSOR FEATURES
50
5.2.6.3
Status Register
The status register shown in Table 37 indicates which (if any) thermal value thresholds 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. A status register read is required to clear any alarm bits that are set. A successful
read to the status register will clear any alarm bits that may have been set, unless the alarm condition
persists
It also indicates if a conversion is in progress or if an open circuit has been detected in the processor core
thermal diode connection. A status register read is required to clear any alarm bits that are set. A successful
read to the status register will clear any alarm bits that may have been set, unless the alarm condition
persists
.
Table 37. 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.
3
RLOW
A one indicates that the processor core thermal diode low temperature alarm has
activated.
2
OPEN
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.
5.2.6.4
Configuration Register
The configuration register controls the operating mode (standby vs. auto-convert) of the thermal sensor.
Table 38 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.
Table 38 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.