Datasheet

Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual Rev. 1.25
1226 Freescale Semiconductor
A.3.1.9 Erase P-Flash Block (FCMD=0x09)
Erasing a 256K NVM block takes
Erasing a 128K NVM block takes
A.3.1.10 Erase P-Flash Sector (FCMD=0x0A)
The typical time to erase a1024-byte P-Flash sector can be calculated using
The maximum time to erase a1024-byte P-Flash sector can be calculated using
A.3.1.11 Unsecure Flash (FCMD=0x0B)
The maximum time for unsecuring the flash is given by
A.3.1.12 Verify Backdoor Access Key (FCMD=0x0C)
The maximum verify backdoor access key time is given by
A.3.1.13 Set User Margin Level (FCMD=0x0D)
The maximum set user margin level time is given by
A.3.1.14 Set Field Margin Level (FCMD=0x0E)
The maximum set field margin level time is given by
t
mass
100100
1
f
NVMOP
-------------------------
70000
1
f
NVMBUS
-----------------------------
⋅+⋅≈
t
mass
100100
1
f
NVMOP
-------------------------
35000
1
f
NVMBUS
-----------------------------
⋅+⋅≈
t
era
20020
1
f
NVMOP
-------------------
⋅
⎝⎠
⎛⎞
700
1
f
NVMBUS
----------------------
⋅
⎝⎠
⎛⎞
+=
t
era
20020
1
f
NVMOP
-------------------
⋅
⎝⎠
⎛⎞
1100
1
f
NVMBUS
----------------------
⋅
⎝⎠
⎛⎞
+=
t
uns
100100
1
f
NVMOP
-------------------------
70000
1
f
NVMBUS
-----------------------------
⋅+⋅
⎝⎠
⎛⎞
=
t 400
1
f
NVMBUS
-----------------------------
⋅=
t 350
1
f
NVMBUS
-----------------------------
⋅=