User Manual

MGC3030/3130
DS40001667E-page 24 Advance Information  2012-2017 Microchip Technology Inc.
Power-up Phases
• Reset or Deep Sleep: The system is kept in Reset
or is in Deep Sleep mode
• Power-up: Phase when the system starts up after
Reset/Deep Sleep has been released
• Processing operation: Processing mode is started
• Power-up Time-out
Signal References
• LSO: Low-Speed Oscillator clock
• HSO: High-Speed Oscillator clock
•V
REF Enable: Voltage Reference enable signal
• HSO Enable: High-Speed Oscillator enable signal
Figure 4-9 illustrates the power-down sequence
timings.
FIGURE 4-9: POWER-DOWN SEQUENCE TIMINGS
TABLE 4-3: POWER-UP TIME-OUT (t
PWRT
)
Signal Symbol
Delay in LSO Cycles
After Reset After Deep Sleep
V
REF Enable t
VREF
00
HSO Enable t
HSO
22
SPU CLK t
SPUCLK
30 8
Power-Up Time-Out t
PWRT
36 10
LSO
SPU CLK
SPU halted
SPU running
HSO enable
VREF enable
Processing
operation
Power
down
Request
Deep sleep
LSO
S
P
U
C
L
K
S
PU halte
d
S
PU runni
ng
H
SO
en
abl
e
VREF
e
n
able
P
rocess
i
n
g
o
p
erat
i
o
n
Power
d
ow
n
Request
D
ee
p
s
l
ee
p