MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 906

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

96 KByte Flash Module (S12FTMRG96K1V1)
25.4.6.13 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 the P-Flash or EEPROM block.
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
906
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
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.
CCOBIX[2:0]
When the EEPROM block is targeted, the EEPROM field margin levels are
applied only to the EEPROM reads. However, when the P-Flash block is
targeted, the P-Flash field margin levels are applied to both P-Flash and
EEPROM reads. It is not possible to apply field margin levels to the P-Flash
block only.
Table 25-57. Set Field Margin Level Command FCCOB Requirements
000
001
1
2
(CCOBIX=001)
Table 25-58. Valid Set Field Margin Level Settings
Read margin to the erased state
Read margin to the programmed state
0x0000
0x0001
0x0002
0x0003
0x0004
CCOB
MC9S12G Family Reference Manual,
0x0E
NOTE
NOTE
Return to Normal Level
FCCOB Parameters
User Margin-1 Level
User Margin-0 Level
Field Margin-1 Level
Field Margin-0 Level
Margin level setting.
Level Description
Flash block selection code [1:0]
Rev.1.01
Table 25-34
1
2
1
2
. See
Table
Freescale Semiconductor
25-58.