MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 747

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

22.4.6.10 Unsecure Flash Command
The Unsecure Flash command will erase the entire P-Flash and EEPROM memory space and, if the erase
is successful, will release security.
Upon clearing CCIF to launch the Unsecure Flash command, the Memory Controller will erase the entire
P-Flash and EEPROM memory space and verify that it is erased. If the Memory Controller verifies that
the entire Flash memory space was properly erased, security will be released. If the erase verify is not
successful, the Unsecure Flash operation sets MGSTAT1 and terminates without changing the security
state. During the execution of this command (CCIF=0) the user must not write to any Flash module
register. The CCIF flag is set after the Unsecure Flash operation has completed.
22.4.6.11 Verify Backdoor Access Key Command
The Verify Backdoor Access Key command will only execute if it is enabled by the KEYEN bits in the
FSEC register (see
Freescale Semiconductor
1
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
As defined by the memory map for FTMRG32K1.
Register
Register
FSTAT
FSTAT
Table
CCOBIX[2:0]
MGSTAT1
MGSTAT0
Table 22-50. Unsecure Flash Command FCCOB Requirements
MGSTAT1
MGSTAT0
ACCERR
ACCERR
Error Bit
Error Bit
FPVIOL
FPVIOL
Table 22-49. Erase P-Flash Sector Command Error Handling
000
22-10). The Verify Backdoor Access Key command releases security if
Table 22-51. Unsecure Flash Command Error Handling
MC9S12G Family Reference Manual, Rev.1.01
Set if CCOBIX[2:0] != 001 at command launch
Set if command not available in current mode (see
Set if an invalid global address [17:16] is supplied see
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
Set if the selected P-Flash sector is protected
Set if any errors have been encountered during the verify operation
Set if any non-correctable errors have been encountered during the verify
operation
Set if CCOBIX[2:0] != 000 at command launch
Set if command not available in current mode (see
Set if any area of the P-Flash or EEPROM memory is protected
Set if any errors have been encountered during the verify operation
Set if any non-correctable errors have been encountered during the verify
operation
0x0B
FCCOB Parameters
Error Condition
Error Condition
Not required
32 KByte Flash Module (S12FTMRG32K1V1)
Table
Table
Table
22-27)
22-27)
22-3)
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