S912XEG128J2VAL
| Model | S912XEG128J2VAL |
| Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
| PDF file | Total 1327 pages (File size: 7M) |
| Chip Manufacturer | ROCHESTER |
Chapter 24 128 KByte Flash Module (S12XFTM128K2V1)
24.4.1.5
D-Flash and EEE Commands
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
Table 24-32
summarizes the valid D-Flash and EEE commands along with the effects of the commands
on the D-Flash block and EEE operation.
Table 24-32. D-Flash Commands
FCMD
0x01
0x02
Command
Erase Verify All
Blocks
Erase Verify Block
Function on D-Flash Memory
Verify that all D-Flash (and P-Flash) blocks are erased.
Verify that the D-Flash block is erased.
Erase all D-Flash (and P-Flash) blocks.
An erase of all Flash blocks is only possible when the FPLDIS, FPHDIS, and FPOPEN bits
in the FPROT register and the EPDIS and EPOPEN bits in the EPROT register are set prior
to launching the command.
Supports a method of releasing MCU security by erasing all D-Flash (and P-Flash) blocks
and verifying that all D-Flash (and P-Flash) blocks are erased.
Specifies a user margin read level for the D-Flash block.
Specifies a field margin read level for the D-Flash block (special modes only).
Erase the D-Flash block and partition an area of the D-Flash block for user access.
Verify that a given number of words starting at the address provided are erased.
Program up to four words in the D-Flash block.
Erase all bytes in a sector of the D-Flash block.
Enable EEPROM emulation where writes to the buffer RAM EEE partition will be copied to
the D-Flash EEE partition.
Suspend all current erase and program activity related to EEPROM emulation but leave
current EEE tags set.
Returns EEE partition and status variables.
Partition an area of the D-Flash block for user access.
0x08
Erase All Blocks
0x0B
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x20
Unsecure Flash
Set User Margin
Level
Set Field Margin
Level
Full Partition D-
Flash
Erase Verify D-
Flash Section
Program D-Flash
Erase D-Flash
Sector
Enable EEPROM
Emulation
Disable EEPROM
Emulation
EEPROM
Emulation Query
Partition D-Flash
24.4.2
Flash Command Description
This section provides details of all available Flash commands launched by a command write sequence. The
ACCERR bit in the FSTAT register will be set during the command write sequence if any of the following
illegal steps are performed, causing the command not to be processed by the Memory Controller:
• Starting any command write sequence that programs or erases Flash memory before initializing the
FCLKDIV register
• Writing an invalid command as part of the command write sequence
• For additional possible errors, refer to the error handling table provided for each command
MC9S12XE-Family Reference Manual , Rev. 1.19
866
Freescale Semiconductor
