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Standard 12V Power Supply Implementation Guidelines
The 12 volt input power is the sole operational power source for the conga-TS570. Other required voltages are generated internally on the
module using onboard voltage regulators.
Note
When designing a power supply for a conga-TS570 application, be aware that the system may malfunction when a 12V power supply that
produces non-monotonic voltage is used to power the system up. Though this problem is rare, it has been observed in some mobile power
supply applications.
The cause of this problem is that some internal circuits on the module (e.g. clock-generator chips) generate their own reset signals when the
supply voltage exceeds a certain voltage threshold. A voltage dip after passing this threshold may lead to these circuits becoming confused,
thereby resulting in a malfunction.
To ensure this problem does not occur, observe the power supply rise waveform through an oscilloscope, during the power supply qualication
phase. This will help to determine if the rise is indeed monotonic and does not have any dips. For more information, see the “Power Supply
Design Guide for Desktop Platform Form Factors” document at www.intel.com.
5.1.14
Power Management
ACPI
The conga-TS570 supports Advanced Configuration and Power Interface (ACPI) specification, revision 4.0a
.
It also supports Suspend to RAM
(S3). For more information, see section 7.5 “ACPI Suspend Modes and Resume Events”.
DEEP Sx
The Deep Sx is a lower power state employed to minimize the power consumption while in S3/S4/S5. In the Deep Sx state, the system entry
condition determines if the system context is maintained or not. All power is shut off except for minimal logic which supports limited set of
wake events for Deep Sx. The Deep Sx on resumption, puts system back into the state it is entered from. In other words, if Deep Sx state was
entered from S3 state, then the resume path will place system back into S3.
S5e Power State
The conga-TS570 features a congatec proprietary Enhanced Soft-Off power state. See section 6.1.7 “Enhanced Soft-Off State” for more
information.
