STFPC320 STMicroelectronics, STFPC320 Datasheet - Page 13

• Manufacturer Part Number: STFPC320
• Description: Front Panel Controller/driver With Standby Power Management And Real-time Clock
• Manufacturer: STMicroelectronics

STFPC320
4.4
Note:
2
3
4
1
Wake-up
The STFPC320 can wake-up from any one of the following sources:
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When the hot-key is detected either from front-panel or remote control or RTC or from a low-
to-high transition on PIN_AV8 pin during stand-by, the STBY pin de-asserts.
The de-assertion of the STBY triggers the guard timer.
The timer value is the programmed value by the user (1-15s). If the user did not change the
value before entering standby, then it remains 10s.
Also note that the guard timer is off when the STFPC320 is in the standby mode.
Guard timer is thus triggered by a de-assertion of the STBY signal or by internal Power On
Reset signal.
Figure 6.
Front-panel keys
Remote-control keys
Real Time Clock (RTC) in 3 conditions (Alarm, Watchdog timer, Oscillator Fail)
External pin PIN_AV8 (only by a low-to-high transition on this pin)
Wake-up
Functional description
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