MC9S12E32CFU FREESCALE [Freescale Semiconductor, Inc], MC9S12E32CFU Datasheet - Page 114

• Manufacturer Part Number: MC9S12E32CFU
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 2 128 Kbyte Flash Module (FTS128K1V1)
114
Clock Register
Written
Check
Address, Data,
Access Error and
Protection Violation
Check
Command
Buffer Empty Check
Bit Polling for
Command Completion
Check
Read: FCLKDIV register
1.
Figure 2-25. Example Mass Erase Command Flow
2.
3.
yes
FDIVLD
Write: Flash Block Address
Write: FCMD register
Mass Erase Command 0x41
Write: FSTAT register
Clear CBEIF 0x80
START
and Dummy Data
Set?
Read: FSTAT register
Read: FSTAT register
MC9S12E128 Data Sheet, Rev. 1.07
ACCERR/
yes
yes
CBEIF
no
Write: FCLKDIV register
CCIF
Set?
PVIOL
Set?
Set?
EXIT
no
yes
no
no
Clear ACCERR/PVIOL 0x30
Write: FSTAT register
NOTE: FCLKDIV needs to
be set once after each reset.
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