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SMH4802
-48V Programmable Hot Swap Power
Controller Windows GUI Users
Guide and Configuration Register
Descriptions
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Register
RC -
Nonvolatile fault latch (NVFL) setting, I2C power
on/off
This
register is not a configuration register, but
rather a nonvolatile fault latch (NVFL). If a
circuit breaker fault condition is detected and the
NVFL is enabled (Register 5, Bit 3 cleared), bit 0
of Register C is automatically set (written with a
logic '1') when the circuit breaker trips. So long
as the bit remains set, the SMH4802 is not able to
drive VGATE or the PG# output. The host or service
center must access the register and clear the bit
(write a '0') once the fault condition has been
resolved. The bit can also be used as a nonvolatile
Power on/off control to power the SMH4802 and
system through the I2C bus.
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Figure
16 - Register RC Windows GUI
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SUMMIT
Microelectronics, Inc. reserves the right
to make changes to the products contained
in this publication in order to improve
design, performance or reliability. SUMMIT
Microelectronics, Inc. assumes no
responsibility for the use of any circuits
described herein, conveys no license under
any patent or other right, and makes no
representation that the circuits are free
of patent infringement. Charts and
schedules contained herein reflect
representative operating parameters, and
may vary depending upon a user's specific
application. While the information in this
publication has been carefully checked,
SUMMIT Microelectronics, Inc. shall not be
liable for any damages arising as a result
of any error or omission
SUMMIT Microelectronics, Inc. does not
recommend the use of any of its products
in life support or aviation applications
where the failure or malfunction of the
product can reasonably be expected to
cause any failure of either system or to
significantly affect their safety or
effectiveness. Products are not authorized
for use in such applications unless SUMMIT
Microelectronics, Inc. receives written
assurances, to its satisfaction, that: (a)
the risk of injury or damage has been
minimized; (b) the user assumes all such
risks; and (c) potential liability of
SUMMIT Microelectronics, Inc. is
adequately protected under the
circumstances.
Revision 1.0 - This document supersedes
all previous versions and covers Status
Tracking Codes up to 10 and Windows GUI
revision 2.39.3 and later. Please check
the Summit Microelectronics, Inc. web site
at www.summitmicro.com
for data sheet updates.
I2C is a trademark of Philips
Corporation.
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Copyright
© 2003 SUMMIT MICROELECTRONICS, Inc.
Power Management for Communications™
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