Samsung RT55EANS Spezifikationen Seite 32

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Seitenansicht 31
32 Intel
®
Atom™ processor CE4100 Ref# 420826
Platform Design Guide
Intel Confidential
4.4.1 Power-On Sequence Example
On the development platform, an external microcontroller (PIC24FJ64GA004) is used to
control platform level power up/off sequence.
Figure 4-1. Power on sequence
Not Valid
Not Valid
Not Valid
3.3V Stand-by
UART1_MC_RX (PIC)
S5 (Soft Off) to S0 (Full On)
RSTWARN (PIC)
PWR Button/IR/CEC Event
S5
RESET_INB (PIC)
PS_ON_PIC (PIC)
RSTRDYB (SOC)
SLPMODE (SOC)
SLPRDYB (SOC)
S0
RB8
RB10
RB7
RB11
RB9
RB13
RB3
VDD
NOTE: External µController (EC) is always powered on
> 100us
150 - 200ms
RSMRST# remains High – No transition
RB12
>
5
m
s
SMI# (PIC)
RB6
RSMRST# (PIC)
SYS_PWR_GD (PIC)
RA1
PWROK
>5 ms
1 ms
USB_ENB_PIC# (PIC)
RA4
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