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DA9021 Datasheet(PDF) 65 Page - Dialog Semiconductor

Part # DA9021
Description  System PMIC with high efficiency USB power manager
PDF  142 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA9021 Datasheet(HTML) 65 Page - Dialog Semiconductor

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DA9021/22
System PMIC with high efficiency USB power manager
Datasheet
Revision 2.5
17-Feb-2017
CFR0011-120-00 Rev 5
65 of 142
© 2017 Dialog Semiconductor
14 Register page control
Table 38: Register page control
Register address
Bit
Type
Label
Default
Description
R0 to R128
PAGE_CON_P0
6:0
R
0000000
7
RW
REG_PAGE
0
0: selects register R1 to R127
1: selects register R129 to R255
14.1 Register page 0
14.1.1
Power manager control and monitoring
The STATUS register reports the current value of the various signals at the time that it is read out.
NOTE
All the status bits have the same polarity as their corresponding signals.
Table 39: STATUS_A
Register
address
Bit
Type
Label
Default
Description
R1 STATUS_A
0
R
nONKEY
1
Current nONKEY state
4
R
VBUS_DET
0
0: VBUS voltage not detected (@ VBUS pin)
1: VBUS voltage detected
6
R
VBUS_SEL
0
0: No valid charger at VBUS (over voltage)
1: VBUS charger selected
7
R
VDAT_DET
0
0: USB host/hub detected (100 mA)
1: Dedicated or host/hub charger detected
Table 40: STATUS_B
Register
address
Bit
Type
Label
Default
Description
R2
STATUS_B
0
R
CHG_ATT
0
0: No charger attached (drop from VCENTER
to VDDOUT < 100 mV)
1: Charger attached (drop from VCENTER to
VDDOUT > 100 mV)
1
R
CHG_PRE
0
Asserted if charger is in pre-charge mode
2
R
CHG_LIM
0
0: Charging as configured
1: Charge current in constant current mode
reduced to less than ICHG_THD
3
R
CHG_END
0
0: Battery charging
1: Battery charging completed
cleared automatically when starting
charging/re-charging
4
R
CHG_TO
0
0: Battery charging timer OK or disabled
1: Battery charging timeout caused charging
finished cleared automatically when starting
charging/re-charging and when loading TCTR
5
R
GP_FB2
0
Status of GP_FP2 pin: configured from power
sequencer



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