mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 537

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Clock Register
Written
Check
FCCOB
Availability Check
Access Error and
Protection Violation
Check
Bit Polling for
Command Completion
Check
Figure 18-26. Generic Flash Command Write Sequence Flowchart
Read: FCLKDIV register
Write: FSTAT register (to launch command)
Clear CCIF 0x80
Write to FCCOBIX register
to identify specific command
parameter to load.
Write to FCCOB register
to load required command parameter.
yes
START
FDIVLD
S12XS Family Reference Manual, Rev. 1.10
Set?
Read: FSTAT register
Read: FSTAT register
yes
Parameters?
ACCERR/
no
no
CCIF Set?
yes
Write: FCLKDIV register
Set?
CCIF
FPVIOL
Set?
More
EXIT
no
yes
no
yes
no
Results from previous Command
Clear ACCERR/FPVIOL 0x30
Write: FSTAT register
Note: FCLKDIV must be set after
each reset
256 KByte Flash Module (S12XFTMR256K1V1)
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