AN2103 Freescale Semiconductor / Motorola, AN2103 Datasheet - Page 27
AN2103
Manufacturer Part Number
AN2103
Description
Local Interconnect Network (LIN) Demonstration
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2103.pdf
(68 pages)
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AN2103
MOTOROLA
4.2.1.4 Sleep Mode
Freescale Semiconductor, Inc.
In this mode, the demo enters its low power state by switching off its
voltage regulator. The master node transmits a SLEEP command
that is received by all slave nodes. Once the SLEEP command has
been successfully transmitted, the master disables its voltage
regulator by driving the LIN interface into its Sleep mode. The
software then waits in an infinite loop until the regulator is disabled.
The master is the only node that can issue a SLEEP command.
The master is woken by a wake-up request initiated by one of the
slave nodes. The LIN I/F device recognizes a specific wake-up
message driven onto the bus. The LIN I/F brings the node out of
sleep mode by turning on the voltage regulator.
Figure 12 Sleep Mode Flow Diagram
For More Information On This Product,
SLEEP_RQ mode
output (PTF pins
NORMAL mode
control ports as
Go to: www.freescale.com
SLEEP mode
Disable UPL
Put SBC into
Put SBC into
Put SBC into
Enable SBC
Wait forever
as output)
device
Start
Master code implementation
Software Description
27
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