MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 832

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

64 KByte Flash Module (S12FTMRG64K1V1)
During the reset sequence, fields DPOPEN and DPS of the EEPROT register are loaded with the contents
of the EEPROM protection byte in the Flash configuration field at global address 0x3_FF0D located in
P-Flash memory (see
EEPROM protection that will be loaded during the reset sequence, the P-Flash sector containing the
EEPROM protection byte must be unprotected, then the EEPROM protection byte must be programmed.
If a double bit fault is detected while reading the P-Flash phrase containing the EEPROM protection byte
during the reset sequence, the DPOPEN bit will be cleared and DPS bits will be set to leave the EEPROM
memory fully protected.
Trying to alter data in any protected area in the EEPROM memory will result in a protection violation error
and the FPVIOL bit will be set in the FSTAT register. Block erase of the EEPROM memory is not possible
if any of the EEPROM sectors are protected.
832
DPOPEN
DPS[5:0]
Field
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
5–0
7
EEPROM Protection Control
0 Enables EEPROM memory protection from program and erase with protected address range defined by DPS
1 Disables EEPROM memory protection from program and erase
EEPROM Protection Size — The DPS[5:0] bits determine the size of the protected area in the EEPROM
memory as shown in
bits
The Protection Size goes on enlarging in step of 32 bytes, for each DPS value
Table
DPS[5:0]
000000
000001
000010
000011
000100
000101
111111
24-4) as indicated by reset condition F in
Table 24-23. EEPROM Protection Address Range
Table 24-23
Table 24-22. EEPROT Field Descriptions
MC9S12G Family Reference Manual,
.
Global Address Range
0x0_0400 – 0x0_04BF
0x0_0400 – 0x0_0BFF
0x0_0400 – 0x0_041F
0x0_0400 – 0x0_043F
0x0_0400 – 0x0_045F
0x0_0400 – 0x0_047F
0x0_0400 – 0x0_049F
increasing of one.
.
.
.
Description
Rev.1.01
Protected Size
Table
2,048 bytes
128 bytes
160 bytes
192 bytes
32 bytes
64 bytes
96 bytes
24-23. To change the
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