Datasheet

64 KByte Flash Module (S12XFTMR64K1V1)
S12XS Family Reference Manual, Rev. 1.13
630 Freescale Semiconductor
P-Flash phrase containing the D-Flash protection byte during the reset sequence, the DPOPEN bit will be
cleared and DPS bits will be set to leave the D-Flash memory fully protected.
Trying to alter data in any protected area in the D-Flash memory will result in a protection violation error
and the FPVIOL bit will be set in the FSTAT register. Block erase of the D-Flash memory is not possible
if any of the D-Flash sectors are protected.
20.3.2.11 Flash Common Command Object Register (FCCOB)
The FCCOB is an array of six words addressed via the CCOBIX index found in the FCCOBIX register.
Byte wide reads and writes are allowed to the FCCOB register.
Table 20-22. DFPROT Field Descriptions
Field Description
7
DPOPEN
D-Flash Protection Control
0 Enables D-Flash memory protection from program and erase with protected address range defined by DPS
bits
1 Disables D-Flash memory protection from program and erase
4–0
DPS[4:0]
D-Flash Protection Size — The DPS[4:0] bits determine the size of the protected area in the D-Flash memory
as shown in Table 20-23.
Table 20-23. D-Flash Protection Address Range
DPS[4:0] Global Address Range Protected Size
0_0000 0x10_0000 – 0x10_00FF 256 bytes
0_0001 0x10_0000 – 0x10_01FF 512 bytes
0_0010 0x10_0000 – 0x10_02FF 768 bytes
0_0011 0x10_0000 – 0x10_03FF 1024 bytes
0_0100 0x10_0000 – 0x10_04FF 1280 bytes
0_0101 0x10_0000 – 0x10_05FF 1536 bytes
0_0110 0x10_0000 – 0x10_06FF 1792 bytes
0_0111 0x10_0000 – 0x10_07FF 2048 bytes
0_1000 0x10_0000 – 0x10_08FF 2304 bytes
0_1001 0x10_0000 – 0x10_09FF 2560 bytes
0_1010 0x10_0000 – 0x10_0AFF 2816 bytes
0_1011 0x10_0000 – 0x10_0BFF 3072 bytes
0_1100 0x10_0000 – 0x10_0CFF 3328 bytes
0_1101 0x10_0000 – 0x10_0DFF 3584 bytes
0_1110 0x10_0000 – 0x10_0EFF 3840 bytes
0_1111 0x10_0000 – 0x10_0FFF 4096 bytes