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 28 768 KByte Flash Module (S12XFTM768K4V2)
Table 28-59. Set User Margin Level Command Error Handling
Register
Error Bit
Error Condition
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
FERSTAT
EPVIOLIF
None
1. As defined by the memory map for FTM1024K5.
NOTE
User margin levels can be used to check that Flash memory contents have
adequate margin for normal level read operations. If unexpected results are
encountered when checking Flash memory contents at user margin levels, a
potential loss of information has been detected.
28.4.2.14 Set Field Margin Level Command
The Set Field Margin Level command, valid in special modes only, causes the Memory Controller to set
the margin level specified for future read operations of a specific P-Flash or D-Flash block.
Table 28-60. Set Field Margin Level Command FCCOB Requirements
CCOBIX[2:0]
000
001
0x0E
FCCOB Parameters
Global address [22:16] to identify the Flash
block
Margin level setting
Upon clearing CCIF to launch the Set Field Margin Level command, the Memory Controller will set the
field margin level for the targeted block and then set the CCIF flag.
Valid margin level settings for the Set Field Margin Level command are defined in
Table 28-61.
Table 28-61. Valid Set Field Margin Level Settings
CCOB
(CCOBIX=001)
0x0000
0x0001
0x0002
0x0003
Level Description
Return to Normal Level
User Margin-1 Level
(1)
User Margin-0 Level
(2)
Field Margin-1 Level
1
0x0004
Field Margin-0 Level
2
1. Read margin to the erased state
2. Read margin to the programmed state
MC9S12XE-Family Reference Manual , Rev. 1.19
Freescale Semiconductor
1125
