MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 319

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Upon clearing CCIF to launch the Erase P-Flash Sector command, the Memory Controller will erase the selected Flash sector
and then verify that it is erased. The CCIF flag will be set after the Erase P-Flash Sector operation has completed.
4.40.4.5.10
The Unsecure Flash command will erase the entire P-Flash and D-Flash 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 D-Flash
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.
4.40.4.5.11
The Verify Backdoor Access Key command will only execute if it is enabled by the KEYEN bits in the FSEC register (see
Table
security bytes of the Flash configuration field (see
from the Flash block containing the backdoor comparison key to avoid code runaway.
Upon clearing CCIF to launch the Verify Backdoor Access Key command, the Memory Controller will check the FSEC KEYEN
bits to verify that this command is enabled. If not enabled, the Memory Controller sets the ACCERR bit in the FSTAT register and
Freescale Semiconductor
413). The Verify Backdoor Access Key command releases security if user-supplied keys match those stored in the Flash
Register
Register
FSTAT
FSTAT
Unsecure Flash Command
Verify Backdoor Access Key Command
Table 469. Verify Backdoor Access Key Command FCCOB Requirements
CCOBIX[2:0]
CCOBIX[2:0]
MGSTAT1
MGSTAT0
MGSTAT1
MGSTAT0
ACCERR
ACCERR
Error Bit
Error Bit
FPVIOL
FPVIOL
000
000
001
010
011
100
Table 467. Unsecure Flash Command FCCOB Requirements
Table 466. Erase P-Flash Sector Command Error Handling
Table 468. Unsecure Flash Command Error Handling
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
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 D-Flash 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
MM912_634 Advance Information, Rev. 4.0
Table
0x0C
0x0B
404). The Verify Backdoor Access Key command must not be executed
FCCOB Parameters
FCCOB Parameters
Key 0
Key 1
Key 2
Key 3
Error Condition
Error Condition
Not required
Not required
Table
Table
445)
445)
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