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ACT8846 Datasheet(PDF) 43 Page - Active-Semi, Inc

Part # ACT8846
Description  Advanced PMU for Multi-core Application Processors
Download  44 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8846 Datasheet(HTML) 43 Page - Active-Semi, Inc

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ACT8846
Rev 7.0 06-Dec-2017
Innovative PowerTM
-
43 -
www.active-semi.com
Copyright © 2016-2017 Active-Semi, Inc.
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
Errata Name:
ACT8846 creates I2C BUS contention.
Description:
ACT8846 incorrectly detects its I2C slave
address and pulls SDA low to acknowledge the
address. This occurs under several conditions.
1. The IC is on a multi-slave I2C bus and the
other slaves use multi-byte read or write
commands, and the read/write data contains a
string of bits that match the ACT8846 I2C
address.
2. The host addresses a device with a 10 bit I2C
address that contains a string of bits that match
the ACT8846 I2C address.
Work Around:
This issue has several work arounds.
1. Do not put I2C devices that use multi-byte
read or write commands on the ACT8846 I2C
bus.
2. Disable the ACT8846 I2C communication after
power up and before using any multi-byte read
or write commands. This allows the user to do a
one-time reconfiguration of the ACT8846 after
power up. Disabling ACT8846 I2C
communication reconfigures SDA and SCL high-
impedance digital inputs. Because the specific
commands to disable the I2C bus are CMI
specific, please contact the factory for specific
instructions.
ERRATA INFO


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