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ATmega16HVB 数据表(PDF) 129 Page - ATMEL Corporation |
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ATmega16HVB 数据表(HTML) 129 Page - ATMEL Corporation |
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129 / 273 page  129 8042A–AVR–07/09 ATmega16HVB/32HVB 22. Charger Detect 22.1 Features • Operates directly from VFET supply • Detects when a charger is connected or disconnected by monitoring the BATT pin • Controls the operation state of the device by automatically enable/disable the internal Voltage Regulator • Automatically disabled when Discharge FET is ON. • Interrupt wake-up from all sleep modes 22.2 Overview The Charger Detect module has two main functions: • Control the device operating state (Power-off or normal operation) • Detect when a charger is connected/disconnected Figure 22-1 shows a block diagram of the Charger Detect module. Figure 22-1. Charger Detect block diagram. Charger Detect w/Power-on Reset VFET + - IRQ POWER_OFF POR 8-BIT DATABUS DFET_EN BLOD SLEEP (power-off) BATT Charger Detect Interrupt Logic CHARGER_PRESENT |
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