mpc5604e Freescale Semiconductor, Inc, mpc5604e Datasheet - Page 31

• Manufacturer Part Number: mpc5604e
• Description: Mpc5604e Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
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Several Low Voltage Detectors, working on voltage regulator supply are monitoring the voltage of the critical modules
(Voltage regulator, I/Os, Flash and Low voltage domain). LVDs are gated low when POWER_ON is active.
A POWER_OK signal is generated when all critical supplies monitored by the LVD are available. This signal is active
high and released to all modules including I/Os, Flash and RC16 oscillator needed during power-up phase and reset
phase. When POWER_OK is low the associated module are set into a safe state.
VDD_HV_REG
POWER_ON
VDD_HV_REG
VDD_LV_REGCOR
VDD_LV_REGCOR
LVDM (HV)
POWER_ON
LVDD (LV)
RC16MHz Oscillator
LVDM (HV)
RC16MHz Oscillator
POWER_OK
Internal Reset Generation Module
FSM
LVDD (LV)
POWER_OK
Internal Reset Generation Module
FSM
IDLE
V
POR_UP
Preliminary—Subject to Change Without Notice
MPC5604E Microcontroller Data Sheet, Rev. 2
Figure 8. Power-down typical sequence
V
Figure 7. Power-up typical sequence
LVDHV3L
P0
V
V
PORH
PORH
V
LVDHV3H
V
MLVDOK_H
~1us
P0
P1
3.3V
0V
3.3V
0V
3.3V
0V
1.2V
0V
1.2V
0V
1.2V
0V
3.3V
0V
3.3V
0V
3.3V
1.2V
0V
1.2V
0V
1.2V
0V
3.3V
3.3V
3.3V
0V
0V
0V
3.3V
0V
0V
Electrical characteristics
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