mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 394

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Multipurpose Clock Generator (MCGV3)
16-26
Figure 16-11. Flowchart of PEE to BLPI Mode Transition using an 8 MHz crystal
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
MCGC2 = $36
MCGC1 = $98
BLPE MODE ?
MCGC2 = $3E
MCGC3 = $18
IN PEE MODE
CLKST = %10 ?
BLPE MODE ?
(LP = 1)
(LP = 0)
(LP=1)
CHECK
ENTER
START
IN
YES
YES
YES
NO
NO
NO
CLKST = %01?
MCGC1 = $5C
MCGC2 = $08
IN BLPI MODE
CHECK LOCK
IREFST = 0?
PLLST = 0?
CONTINUE
OPTIONAL:
CHECK
CHECK
CHECK
= 1?
YES
YES
YES
YES
NO
NO
NO
NO
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