Microchip Technology DM160218 Data Sheet
2012-2013 Microchip Technology Inc.
Advance Information
DS40001667C-page 21
MGC3130
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
• Power-up Time-out
Signal References
• LSO: Low-Speed Oscillator clock
• HSO: High-Speed Oscillator clock
• V
• HSO: High-Speed Oscillator clock
• V
REF
Enable: Voltage Reference enable signal
• HSO Enable: High-Speed Oscillator enable signal
• STEP-UP Enable: STEP-UP converter enable
signal
illustrates the power-down sequence
timings.
FIGURE 4-10:
POWER-DOWN SEQUENCE TIMINGS
TABLE 4-3:
POWER-UP TIME-OUT (t
PWRT
)
Signal
Symbol
Delay in LSO Cycles
After Reset
After Deep Sleep
(STEP-UP On)
After Deep Sleep
(STEP-UP Off)
V
REF
Enable
t
VREF
0
0
0
HSO Enable
t
HSO
2
2
2
STEP-UP
t
STEP-UP
4
4
x
SPU CLK
t
SPUCLK
30
30
8
Power-Up
Time-Out
Time-Out
t
PWRT
36
36
10
LSO
SPU CLK
STEP-UP enable
SPU halted
SPU running
HSO enable
V
REF
enable
Processing operation
Power
down
Request
Deep Sleep