Freescale Semiconductor MPC5604B

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MPC5604B/C Microcontroller Reference Manual, Rev. 8

Freescale Semiconductor 205

9.4.1.1 PHASE0 Phase

This phase is entered immediately from any phase on a power-on or enabled ‘destructive’ reset event. The

reset state machine exits PHASE0 and enters PHASE1 on verification of the following:

Figure 9-11. MC_RGM State Machine

PHASE0

PHASE1

PHASE2

PHASE3

IDLE

duration  3 fast internal RC oscillator (16 MHz) clock cycles

FIRC stable, VREG voltage okay done

duration  350 fast internal RC oscillator (16 MHz) clock

cycles

durationfast internal RC oscillator (16 MHz) clock cycles

code and data flash initialization done

duration 40fast internal RC oscillator (16 MHz) clock cycles

code and data flash initialization done

fast internal RC oscillator (16 MHz) clock is running

power-up has completed

power-on

or enabled

‘destructive’

reset

enabled

non-shortened

external or

‘functional’

reset

enabled

shortened

external or

‘functional’

reset

code and data flash initialization done

RESET released

Freescale Semiconductor MPC5604B - Page 216