S9S12XS256J0CAL Datasheet, PDF (514/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

256 KByte Flash Module (S12XFTMR256K1V1)
D-Flash START = 0x10_0000
D-Flash END = 0x10_1FFF
D-Flash Memory
8 Kbytes
0x12_0000
0x12_1000
0x12_2000
0x12_4000
D-Flash Nonvolatile Information Register (DFIFRON)
128 bytes
Memory Controller Scratch RAM (MGRAMON)
768 bytes
0x12_E800
0x12_FFFF
Figure 18-3. D-Flash and Memory Controller Resource Memory Map
18.3.2 Register Descriptions
The Flash module contains a set of 20 control and status registers located between Flash module base +
0x0000 and 0x0013. A summary of the Flash module registers is given in Figure 18-4 with detailed
descriptions in the following subsections.
CAUTION
Writes to any Flash register must be avoided while a Flash command is
active (CCIF=0) to prevent corruption of Flash register contents and
Memory Controller behavior.
Address
& Name
0x0000
FCLKDIV
7
R FDIVLD
W
6
FDIV6
0x0001
FSEC
R KEYEN1
W
KEYEN0
5
FDIV5
RNV5
4
FDIV4
RNV4
3
FDIV3
RNV3
2
FDIV2
RNV2
1
FDIV1
SEC1
0
FDIV0
SEC0
Figure 18-4. FTMR256K1 Register Summary
S12XS Family Reference Manual, Rev. 1.13
514
Freescale Semiconductor