mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 1214

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)
1214
Clock Register
Written
Check
Bit Polling for
Command Completion
Check
Erase Verify
Status
Address, Data,
Access Error and
Protection Violation
Check
Command
Buffer Empty Check
Read: FCLKDIV register
2.
3.
1.
Figure 29-23. Example Erase Verify Command Flow
yes
FDIVLD
Erase Verify Command 0x05
Write: FSTAT register
Clear CBEIF 0x80
START
Write: FCMD register
Write: Flash Block Address
and Dummy Data
Set?
Read: FSTAT register
Read: FSTAT register
MC9S12XDP512 Data Sheet, Rev. 2.17
ACCERR/
yes
BLANK
yes
yes
CBEIF
no
CCIF
Write: FCLKDIV register
Set?
Set?
Set?
EXIT
PVIOL
Set?
no
Flash Block
Erased
yes
no
no
no
Write: FSTAT register
Clear ACCERR/PVIOL 0x30
NOTE: FCLKDIV needs to
be set once after each reset.
EXIT
Flash Block
Not Erased
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