S9S12XS256J0CAL Datasheet, PDF (635/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

64 KByte Flash Module (S12XFTMR64K1V1)
20.3.2.17 Flash Reserved3 Register (FRSV3)
This Flash register is reserved for factory testing.
Offset Module Base + 0x0012
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 20-24. Flash Reserved3 Register (FRSV3)
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.
Offset Module Base + 0x0013
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 20-25. Flash Reserved4 Register (FRSV4)
All bits in the FRSV4 register read 0 and are not writable.
20.4 Functional Description
20.4.1 Flash Command Operations
Flash command operations are used to modify Flash memory contents.
The next sections describe:
• 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
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor
635