MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 828

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

64 KByte Flash Module (S12FTMRG64K1V1)
Trying to alter data in any protected area in the P-Flash memory will result in a protection violation error
and the FPVIOL bit will be set in the FSTAT register. The block erase of a P-Flash block is not possible if
any of the P-Flash sectors contained in the same P-Flash block are protected.
828
FPHS[1:0]
FPLS[1:0]
FPOPEN
FPHDIS
FPLDIS
RNV[6]
Field
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
4–3
1–0
7
6
5
2
Flash Protection Operation Enable — The FPOPEN bit determines the protection function for program or
erase operations as shown in
0 When FPOPEN is clear, the FPHDIS and FPLDIS bits define unprotected address ranges as specified by the
1 When FPOPEN is set, the FPHDIS and FPLDIS bits enable protection for the address range specified by the
Reserved Nonvolatile Bit — The RNV bit should remain in the erased state for future enhancements.
Flash Protection Higher Address Range Disable — The FPHDIS bit determines whether there is a
protected/unprotected area in a specific region of the P-Flash memory ending with global address 0x3_FFFF.
0 Protection/Unprotection enabled
1 Protection/Unprotection disabled
Flash Protection Higher Address Size — The FPHS bits determine the size of the protected/unprotected area
in P-Flash memory as shown
Flash Protection Lower Address Range Disable — The FPLDIS bit determines whether there is a
protected/unprotected area in a specific region of the P-Flash memory beginning with global address 0x3_8000.
0 Protection/Unprotection enabled
1 Protection/Unprotection disabled
Flash Protection Lower Address Size — The FPLS bits determine the size of the protected/unprotected area
in P-Flash memory as shown in
corresponding FPHS and FPLS bits
corresponding FPHS and FPLS bits
1
FPOPEN
For range sizes, refer to
1
1
1
1
0
0
0
0
FPHDIS
Table 24-18. P-Flash Protection Function
MC9S12G Family Reference Manual,
Table 24-17. FPROT Field Descriptions
1
1
0
0
1
1
0
0
inTable
Table 24-18
Table
Table 24-19
FPLDIS
24-19. The FPHS bits can only be written to while the FPHDIS bit is set.
24-20. The FPLS bits can only be written to while the FPLDIS bit is set.
1
0
1
0
1
0
1
0
for the P-Flash block.
and
No P-Flash Protection
Protected Low Range
Protected High Range
Protected High and Low Ranges
Full P-Flash Memory Protected
Unprotected Low Range
Unprotected High Range
Unprotected High and Low Ranges
Description
Table
24-20.
Function
Rev.1.01
1
Freescale Semiconductor