MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 317

• 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

4.40.4.5.6
The Program Once command restricts programming to a reserved 64 byte field (8 phrases) in the nonvolatile information register
located in P-Flash. The Program Once reserved field can be read using the Read Once command as described in
Section
cannot be erased. The Program Once command must not be executed from the Flash block containing the Program Once
reserved field to avoid code runaway.
Upon clearing CCIF to launch the Program Once command, the Memory Controller first verifies that the selected phrase is
erased. If erased, then the selected phrase will be programmed and then verified with read back. The CCIF flag will remain clear,
setting only after the Program Once operation has completed.
The reserved nonvolatile information register accessed by the Program Once command cannot be erased and any attempt to
program one of these phrases a second time will not be allowed. Valid phrase index values for the Program Once command range
from 0x0000 to 0x0007. During execution of the Program Once command, any attempt to read addresses within P-Flash will
return invalid data.
4.40.4.5.7
The Erase All Blocks operation will erase the entire P-Flash and D-Flash memory space.
Freescale Semiconductor
Note:
219.
4.40.4.5.4. The Program Once command must only be issued once since the nonvolatile information register in P-Flash
Register
Register
FSTAT
FSTAT
If a Program Once phrase is initially programmed to 0xFFFF_FFFF_FFFF_FFFF, the Program Once command will be allowed
to execute again on that same phrase.
Program Once Command
Erase All Blocks Command
CCOBIX[2:0]
MGSTAT1
MGSTAT0
MGSTAT1
MGSTAT0
ACCERR
ACCERR
Error Bit
Error Bit
FPVIOL
FPVIOL
000
001
010
011
100
101
Table 459. Program Once Command FCCOB Requirements
Table 458. Program P-Flash Command Error Handling
Table 460. Program Once Command Error Handling
Set if CCOBIX[2:0] != 101 at command launch
Set if command not available in current mode (see
Set if an invalid global address [17:0] is supplied
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
Set if the global address [17:0] points to a protected area
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] != 101 at command launch
Set if command not available in current mode (see
Set if an invalid phrase index is supplied
Set if the requested phrase has already been programmed
None
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
Program Once phrase index (0x0000 - 0x0007)
0x07
Program Once word 0 value
Program Once word 1 value
Program Once word 2 value
Program Once word 3 value
FCCOB Parameters
Error Condition
Error Condition
Not Required
Table
Table
445)
445)
(219)
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