Datasheet

 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
Signal References
• LSO: Low-Speed Oscillator clock
• HSO: High-Speed Oscillator clock
•VREF Enable: Voltage Reference enable signal
• HSO Enable: High-Speed Oscillator enable signal
• STEP-UP Enable: STEP-UP converter enable
signal
Figure 4-10 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)
VREF Enable t
VREF
000
HSO Enable t
HSO
222
STEP-UP t
STEP-UP
44x
SPU CLK t
SPUCLK
30 30 8
Power-Up
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