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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Technical brief
3.1.13 Power On Sequence
c
User presses END key and then ONSWAn signal is changed to Low.
d
AB3000 initiates the internal oscillator and powers on the regulators.
e
AB3000 generates power for DB3150.
f
AB3000 releases the power reset signal(PWRRSTn) and generates an interrupt(IRQ0n)
to DB3150.
Figure 3-1-13. Power On Sequence
DB3150
RESPOW_N
IRQ0_N
AB3000
PWRRST
IRQ
ONSWA
e
Power for
DB3150
f
PWRRSTn
f
IRQ0n
c
ONSWAn
c
Press END key
Содержание GD580
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