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AXP209 数据表(PDF) 27 Page - List of Unclassifed Manufacturers

部件名 AXP209
功能描述  Enhanced single Cell Li-Battery and Power System Management IC
PDF  45 Pages
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

AXP209 数据表(HTML) 27 Page - List of Unclassifed Manufacturers

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AXP209
Enhanced single Cell Li-Battery and Power System Management IC
Figure 2: Multi Read and Write
Host can access the AXP209 registers via the TWSI interface, and the operation timing is shown
above. Standard 100KHz or 400KHz frequency is supported, and the highest rate can reach 1.2MHz.
In addition, multi read and write operation is supported, and the device addresses are 69H (READ)
and 68H (WRITE).
When certain events occur, AXP209 will inform the Host by pulling down the IRQ interrupt line, and
the interrupt state will be stored in interrupt state registers (See registers REG48H, REG49H,
REG4AH, REG4BH and REG4CH). The interrupt can be cleared by writing 1 to corresponding state
register bit. When there is no interrupt, IRQ output will be pulled high (by 51K external pull-up resistor).
Each interrupt can be masked via interrupt control registers (Refer to registers REG40H, REG41H,
REG42H, REG43H, and REG44H).
Location
Interrupt
Meaning
Location
Interrupt
Meaning
Register 48H [7]
IRQ1
Power supply ACIN
over voltage
Register 4AH [3] IRQ20
DCDC3 Voltage is too
low
Register 48H [6]
IRQ2
Power supply ACIN
Inserted
Register 4AH [2]
Reservations
Register 48H [5]
IRQ3
Power supply ACIN
Removed
Register 4AH [1] IRQ22
PEK Short press
Register 48H [4]
IRQ4
Power supply VBUS
Overvoltage
Register 4AH [0] IRQ23
PEK Press
Register 48H [3]
IRQ5
Power supply VBUS
Inserted
Register 4BH [7] IRQ24
N_OE Boot
Register 48H [2]
IRQ6
Power supply VBUS
Removed
Register 4BH [6] IRQ25
N_OE Shutdown
Register 48H [1]
IRQ7
VBUS Voltage is less
than VHOLD
Register 4BH [5] IRQ26
VBUS Effective
Register 48H [0]
Reserved
Register 4BH [4] IRQ27
VBUS Invalid
Register 49H [7]
IRQ8
Battery access
Register 4BH [3] IRQ28
VBUS Session Valid
Register 49H [6]
IRQ9
Remove the battery
Register 4BH [2] IRQ29
VBUS Session End
Register 49H [5]
IRQ10
Into the battery
activation mode
Register 4BH [1] IRQ30
Low battery warning
LEVEL1
Confidential
Page 27/45



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