MC9S08DZ60MLF Datasheet, PDF (158/416 Pages) Freescale Semiconductor, Inc – MC9S08DZ60 Series Features

Chapter 8 Multi-Purpose Clock Generator (S08MCGV1)
4. Lastly, FBI transitions into BLPI mode.
a) MCGC2 = 0x08 (%00001000)
– LP (bit 3) in MCGSC is 1
START
IN PEE MODE
MCGC1 = $90
CHECK
NO
CLKST = %10 ?
YES
ENTER
NO
BLPE MODE ?
YES
MCGC2 = $3E
MCGC1 = $B8
MCGC3 = $04
CHECK
NO
PLLST = 0?
YES
OPTIONAL: NO
CHECK LOCK
= 1?
YES
MCGC1 = $44
CHECK
NO
IREFST = 0?
YES
IN
BLPE MODE ?
NO
(LP=1)
YES
MCGC2 = $36
(LP = 0)
CHECK
NO
CLKST = %01?
YES
MCGC2 = $08
CONTINUE
IN BLPI MODE
Figure 8-10. Flowchart of PEE to BLPI Mode Transition using a 4 MHz crystal
MC9S08DZ60 Series Data Sheet, Rev. 4
158
Freescale Semiconductor