Intel i3-2328M FF8062701275100 Data Sheet
Product codes
FF8062701275100
Datasheet, Volume 1
71
Thermal Management
The DTS-relative temperature readout directly impacts the Adaptive Thermal Monitor
trigger point. When a package DTS indicates that it has reached the TCC activation (a
reading of 0h, except when the TCC activation offset is changed), the TCC will activate
and indicate a Adaptive Thermal Monitor event. A TCC activation will lower both IA core
and graphics core frequency, voltage or both.
trigger point. When a package DTS indicates that it has reached the TCC activation (a
reading of 0h, except when the TCC activation offset is changed), the TCC will activate
and indicate a Adaptive Thermal Monitor event. A TCC activation will lower both IA core
and graphics core frequency, voltage or both.
Changes to the temperature can be detected using two programmable thresholds
located in the processor thermal MSRs. These thresholds have the capability of
generating interrupts using the core's local APIC. Refer to the Intel
located in the processor thermal MSRs. These thresholds have the capability of
generating interrupts using the core's local APIC. Refer to the Intel
®
64 and IA-32
Architectures Software Developer's Manuals for specific register and programming
details.
details.
5.4.1.2.1
Digital Thermal Sensor Accuracy (Taccuracy)
The error associated with DTS measurement will not exceed ±5 °C at Tj,max. The DTS
measurement within the entire operating range will meet a ±5 °C accuracy.
measurement within the entire operating range will meet a ±5 °C accuracy.
5.4.1.3
PROCHOT# Signal
PROCHOT# (processor hot) is asserted when the processor core temperature has
reached its maximum operating temperature (T
reached its maximum operating temperature (T
j,max
). See
for a timing
diagram of the PROCHOT# signal assertion relative to the Adaptive Thermal Response.
Only a single PROCHOT# pin exists at a package level. When any core arrives at the
TCC activation point, the PROCHOT# signal will be asserted. PROCHOT# assertion
policies are independent of Adaptive Thermal Monitor enabling.
Only a single PROCHOT# pin exists at a package level. When any core arrives at the
TCC activation point, the PROCHOT# signal will be asserted. PROCHOT# assertion
policies are independent of Adaptive Thermal Monitor enabling.
Note:
Bus snooping and interrupt latching are active while the TCC is active.
5.4.1.3.1
Bi-Directional PROCHOT#
By default, the PROCHOT# signal is defined as an output only. However, the signal may
be configured as bi-directional. When configured as a bi-directional signal, PROCHOT#
can be used for thermally protecting other platform components should they overheat
as well. When PROCHOT# is driven by an external device:
be configured as bi-directional. When configured as a bi-directional signal, PROCHOT#
can be used for thermally protecting other platform components should they overheat
as well. When PROCHOT# is driven by an external device:
• the package will immediately transition to the minimum operation points (voltage
and frequency) supported by the processor and graphics cores. This is contrary to
the internally-generated Adaptive Thermal Monitor response.
the internally-generated Adaptive Thermal Monitor response.
• Clock modulation is not activated.
The TCC will remain active until the system de-asserts PROCHOT#. The processor can
be configured to generate an interrupt upon assertion and de-assertion of the
PROCHOT# signal.
be configured to generate an interrupt upon assertion and de-assertion of the
PROCHOT# signal.
Note:
Toggling PROCHOT# more than once in 1.5ms period will result in constant Pn state of
the processor.