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Flash Memory
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
13-33
Figure 13-15. Erase Sequence
User mode read state
Write MCR
ERS = 1
Select blocks
Erase interlock write
Step 1
Step 2
Step 3
Write MCR
EHV = 1
High voltage active
Access MCR
DONE
?
Step 4
WRITE
ESUS = 1
Read MCR
DONE = 1
Erase suspend
ERS = 0
User mode read state
PEG = 0
Read MCR
DONE = 1
DONE = 0
Write MCR
ESUS = 0
EHV = 1
Abort
WRITE
EHV = 0
Step 5
Step 6
PEG
?
Success
PEG = 1
Write MCR
Failure
PEG = 0
Step 7
EHV = 0
Erase
more blocks
Step 8
?
No
Yes
Write MCR
ERS = 0
User mode read state
Step 9
EHV = 0
Write MCR
PGM = 1
Program,
Step 2
Go to
Step 2
Note: PEG remains valid under this
condition until EHV is set high or
ERS is cleared.
Note: ESUS cannot be cleared while
EHV = 0. ESUS and EHV cannot
both be changed in a single
write operation.
PEG valid period
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...