mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 76
mcf51ac256a
Manufacturer Part Number
mcf51ac256a
Description
Mcf51ac Flexis
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF51AC256A.pdf
(566 pages)
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Memory
successfully launched, the FCCF flag in the FSTAT register will set after the mass erase operation has
completed.
4-32
Clock Register
Written
Check
Bit Polling for
Command Completion
Check
Command
Buffer Empty Check
Access Error and
Protection Violation
Check
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Read: FCDIV register
Figure 4-14. Example Mass Erase Command Flow
2.
3.
1.
yes
FDIVLD
Write: FCMD register
Mass Erase Command 0x41
Write: FSTAT register
Clear FCBEF 0x80
Write: Flash Memory Address
and Dummy Data
START
Set?
Read: FSTAT register
Read: FSTAT register
FACCERR/FPVIOL
yes
FCBEF
yes
no
FCCF
Set?
Set?
EXIT
Write: FCDIV register
Set?
no
no
yes
no
Write: FSTAT register
Clear FACCERR/FPVIOL 0x30
Note: FCDIV needs to
be set after each reset
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