User`s manual

DIGITAL-LOGIC AG MPC40/A/B/C, MPC41 Manual V1.4C
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4.9.1.4.1 Low Power Features
• No bus master arbiter disable required prior to transition and no processor cache flush necessary.
• Improved Intel Thermal Monitor mode.
— When the on-die thermal sensor indicates that the die temperature is too high, the
processor can automatically perform a transition to a lower frequency/voltage specified in
a software programmable MSR.
— The processor waits for a fixed time period. If the die temperature is down to acceptable
levels, an up transition to the previous frequency/voltage point occurs.
— An interrupt is generated for the up and down Intel Thermal Monitor transitions enabling
better system level thermal management.
Enhancements:
• Dynamic PSB Power Down
• BPRI# control for address and control input buffers
• Dynamic On Die Termination disabling
• Low VCCP (I/O termination voltage) switching power at all times.
monitoring requirements in the Deeper Sleep state.