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EFP01 Datasheet(PDF) 119 Page - Silicon Laboratories

Part # EFP01
Description  EFP01 Energy Friendly PMIC Family
PDF  158 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

EFP01 Datasheet(HTML) 119 Page - Silicon Laboratories

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6.2.26 VDD_MAX_LSBY
Offset
Bit Position
0x20
7
6
5
4
3
2
1
0
Reset
0x00
Access
Name
Table 6.26. VDD_MAX_LSBY
Bit
Name
Reset
Access
Description
7:0
VDD_MAX_LSBY
0x00
read-only
Least significant byte of measured VDDA or VDDB voltage
max since last clear. The VDDA pin will be measured only
if a supply is present on that pin (i.e.,
CC_MODE.SC_MODE=1), otherwise the VDDB pin is
measured.
Note that this value is spread over 2 registers and may be
continuously updated. To ensure that the capture of the
register is not corrupted by changes during the capture
process, addressing this read-only register causes an in-
hibition in the updating of the register.
To ensure coherence when reading the most significant
and least significant bytes, a MSBY register read causes
the corresponding LSBY register value to be stored into a
shadow register. Reading the LSBY register will then re-
turn the value stored in the LSBY shadow register.
VDDB (mV) = ((VDD_xxx_MSN<<8) + VDD_xxx_LSBY) ×
1.49
VDDA (mV) = ((VDD_xxx_MSN<<8) + VDD_xxx_LSBY) ×
1.01
EFP01 Energy Friendly PMIC Family Data Sheet
Register Definitions
silabs.com | Building a more connected world.
Rev. 1.3 | 119



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