AXP209
Enhanced single Cell Li-Battery and Power System Management IC
10.1 REG 00H:Input power status
Bit
Description
7 ACIN presence indication
0: ACIN Does not exist;1: ACIN Exist
6 Instructions ACIN Is available
5 VBUS presence indication
0: VBUS Does not exist;1: VBUS Exist
4 Indicates if VBUS is useable
3 Indicating whether the VBUS voltage is above VHOLD before used.
2 Indicates that the battery current direction
0:Battery discharging; 1:The battery is charging
1 Indicating whether ACIN and VBUS input short circuit on PCB
0 Indicating whether the boot source is ACIN or VBUS
0: Boot source isn’t ACIN/VBUS; 1: Boot source is ACIN/VBUS.
R/W
R
R
R
R
R
R
R
R
10.2 REG 01H:Power mode and charge status indication
Bit
7 Indicates AXP209 over-temperature
0:Not too hot; 1:Over Temperature
6 Charging indicator
0:Not charging or charging has been
completed; 1:Charging
Description
5 Battery connected indicator
0:No battery is connected to the AXP209; 1:The battery is connected to
the AXP209
4 Reservations can not be changed
3 Indicate whether the battery charger entered into activation mode
0:Did not enter the cell activation mode; 1:Has entered the cell activation mode
2 Indicates the charging current is less than the expected current
0:The actual charge current equal to the desired current; 1:The actual charge current is
less than the desired current
1-0 Reserved, can not be changed
R/W
R
R
R
R
R
R
R
10.3 REG 02H: USB OTG VBUS Status Indication
Bit
Description
7-3 Reserved, can not be changed
2 Indicating whether VBUS is valid or not,1 means “valid”
1 Indicating whether VBUS is valid or not,1 means “valid”
0 Indicating Session End status,1 means “valid”
R/W
R
R
R
Confidential
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