mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 681

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

A.3.1.8
Erasing a 256K NVM block takes
Erasing a 128K NVM block takes
A.3.1.9
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.3.1.10
The maximum time for unsecuring the flash is given by
A.3.1.11
The maximum verify backdoor access key time is given by
A.3.1.12
The maximum set user margin level time is given by
A.3.1.13
The maximum set field margin level time is given by
Freescale Semiconductor
t
t mass 100100
t uns
t
t
mass
=
=
400
350
=
t
t
era
era
⎛
⎝
≈
≈
⋅
⋅
=
100100
=
--------------------------- -
f NVMBUS
--------------------------- -
f NVMBUS
100100
⎛
⎝
⎛
⎝
Erase P-Flash Block (FCMD=0x09)
Erase P-Flash Sector (FCMD=0x0A)
Unsecure Flash (FCMD=0x0B)
Verify Backdoor Access Key (FCMD=0x0C)
Set User Margin Level (FCMD=0x0D)
Set Field Margin Level (FCMD=0x0E)
20020
20020
1
1
⋅
⋅
⋅
⋅
⋅
------------------------ -
f NVMOP
------------------ -
f
------------------ -
f
------------------------ -
f NVMOP
------------------------ -
f NVMOP
NVMOP
NVMOP
1
1
1
1
1
⎞
⎠
⎞
⎠
+
+
⎛
⎝
⎛
⎝
+
700
1100
+
+
70000
S12XS Family Reference Manual, Rev. 1.10
70000
35000
⋅
-------------------- -
f
⋅
NVMBUS
-------------------- -
f
NVMBUS
1
⋅
1
⋅
⋅
--------------------------- -
f NVMBUS
--------------------------- -
f NVMBUS
--------------------------- -
f NVMBUS
⎞
⎠
⎞
⎠
1
1
1
⎞
⎠
Electrical Characteristics
681