mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 635

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

20.3.2.17 Flash Reserved3 Register (FRSV3)
This Flash register is reserved for factory testing.
All bits in the FRSV3 register read 0 and are not writable.
20.3.2.18 Flash Reserved4 Register (FRSV4)
This Flash register is reserved for factory testing.
All bits in the FRSV4 register read 0 and are not writable.
20.4
20.4.1
Flash command operations are used to modify Flash memory contents.
The next sections describe:
Freescale Semiconductor
Offset Module Base + 0x0012
Offset Module Base + 0x0013
Reset
Reset
•
•
•
W
W
R
R
How to write the FCLKDIV register that is used to generate a time base (FCLK) derived from
OSCCLK for Flash program and erase command operations
The command write sequence used to set Flash command parameters and launch execution
Valid Flash commands available for execution
Functional Description
Flash Command Operations
0
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
Figure 20-24. Flash Reserved3 Register (FRSV3)
Figure 20-25. Flash Reserved4 Register (FRSV4)
S12XS Family Reference Manual, Rev. 1.10
0
0
0
0
5
5
0
0
0
0
4
4
0
0
0
0
3
3
64 KByte Flash Module (S12XFTMR64K1V1)
0
0
0
0
2
2
0
0
0
0
1
1
0
0
0
0
0
0
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