This application note describes what causes the power up cycling problem and how the control bus lock-out condition can be avoided. These circuits have an internal RC time constant, and a voltage monitor, with hysterisis. See IEEE The GC or GC powerup reset capacitor is charged to a voltage above the set point. VCore Power is removed, and reapplied before the Power up capacitor discharges below the setpoint.
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This application note describes what causes the power up cycling problem and how the control bus lock-out condition can be avoided. These circuits have an internal RC time constant, and a voltage monitor, with hysterisis.
See IEEE The GC or GC powerup reset capacitor is charged to a voltage above the set point. VCore Power is removed, and reapplied before the Power up capacitor discharges below the setpoint.
The test indicated checks two internal registers for proper operation: Trademarks are the property of their respective owners. Read address x5, the value read should be xFF Write to address x0, the value xF8 Write to address x2, the value x0B Write to address x5, the value xFE Write to address x1, the value x01 3. These pins are left open, or connected in a JTAG chain and are pulled up. The user device programming after the OFF? These tests check the internal logic, and power, and clock input.
Power On? Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty.
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